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VV Berserker vs. SM Kayfun Prime

Discussion in 'RTA' started by VictorC, Sep 23, 2017.

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  1. VictorC

    VictorC Super Member ECF Veteran

    Jan 26, 2015
    Toronto, Ontario
    Here it goes, my very subjective assessment of two new MTL tanks, Berserker (with supplied 4.5 ml tank) and Kayfun Prime (with optional 4.5ml tank). Same coil (round Kanthal, 27 GA, 6 wraps, 2.5 mm) and same juice (70%VG/30%PG). Please keep in mind that I am not a professional reviewer and simply sharing my experience.

    [​IMG]

    Cleanliness on arrival
    Both tanks arrived clean with no smell of oil. Quick rinse and you good to go.
    score B:5 KP:5

    Fit & finish
    Both are excellent, but KP has an edge here, machining and threading on it is flawless.
    score B:4 KP:5

    Drip tip
    Berserker wins, the shape of their drip tip is very comfortable and better than the one on KP
    score B:5 KP:4

    Juice flow Control
    There is none on Berserker. KP has it, might not be the best implementation as you still need to count rotations, but does the job well.
    score B:0 KP:4

    Air flow control
    AFC ring on Berserker is under engineered, it’s loose and can be easily knocked off into a different position. KP implementation is much better, but over engineered and stiff.
    score B:2 KP:4

    Top fill
    Berserker - gurgling and sometimes flooding, Kayfun, as expected (due to JFC), zero issues. I have to mention that bottom fill addresses gurgling/flooding with Berserker
    score B:1 KP:5

    Ease of re-building
    Both are excellent, easy to re-build without draining the tank
    score B:5, KP:5

    Flavour
    Both produce excellent flavour
    score B:5 KP:5

    Draw
    Both are MTL tanks. At the smallest setting B is tighter, at the largest KP is a more open which may have appeal to a broader audience. At the middle settings they are almost identical, yet KP seems a bit more airy. Both are very quiet, produce smooth draw with no turbulence.
    score B:5 KP:5

    Aesthetics (no score)
    This is very subjective but I prefer the cleaner look of KP with no visible gaskets/o-rings.

    Cost (no score)
    Simple fact, one is made in China and another one in Germany. Berserker comes with both tank options and you can buy 4 of them for the price of one KP. And 4.5 ml tank is optional for KP. You to judge.

    Bottom line. They are similar and yet very different RTAs but both deliver a very good quality mouth-to-lung vape.

    Cheers, Victor
     
    • Like Like x 20
    • Informative Informative x 1
  2. Cool_Breeze

    Cool_Breeze Vaping Master Verified Member ECF Veteran

    Apr 10, 2011
    Kentucky
    How important is Juice Flow Control?
     
    • Like Like x 2
  3. VictorC

    VictorC Super Member ECF Veteran

    Jan 26, 2015
    Toronto, Ontario
    It protects the "vacuum-based" tanks from flooding during top refill or leaking on the airplane. Also helps to correct (to a certain degree) the error when cotton wick is wrong (too thin or too thick) for chosen PG/VG percentage.
     
    • Like Like x 7
  4. G and C

    G and C Senior Member Verified Member ECF Veteran

    Jun 3, 2014
    California
    Great review and comparison, thanks for doing that.

    I think the biggest thing here is price point. I would expect finer machining and more bells and whistles at the $100+ price point of the Kayfun. For $30, I'm really happy that the Berserker is a darn fine MTL RTA. For $100+, I'm expecting the Kayfun to be one of the best MTL RTAs I've ever tried.
     
    • Like Like x 6
  5. LilWhiteClouder

    LilWhiteClouder Ultra Member Verified Member ECF Veteran

    Apr 1, 2015
    Raleigh, NC
    I, too, enjoyed your review. Fairly strict DL vaper but I do enjoy a lighter draw but full flavored vape. Watching the Kfun evolve has been interesting and might just be Prime time for me.
    Overly agree in aesthetics between these two, KF hands down "sexier". B looks like a more bubbly version of my evil eye big Buddha 30mm RTA.
     
    • Like Like x 5
  6. LilWhiteClouder

    LilWhiteClouder Ultra Member Verified Member ECF Veteran

    Apr 1, 2015
    Raleigh, NC
    This really caught my eye...
    Learned and really understood this concept from discussion around the Merlin Rta.
    I Actually flew, for the first time, with vape gear earlier this month. Started preparing the Merlin with a decent build a week prior. Had about 1/2 tank juice when Stowed. Made sure air and juice flows shutoff. No leaks. Popped it right back on mod and quickly vaped outside after landing.
    That feature and a cigalike were key for me when traveling.
     
    • Like Like x 5
  7. traianescu

    traianescu Senior Member ECF Veteran

    Sep 2, 2017
    the poor Berserker.. he is loosing the war .. at least, does it have lower juice consumtion than kay prime ?
     
    • Like Like x 2
  8. VictorC

    VictorC Super Member ECF Veteran

    Jan 26, 2015
    Toronto, Ontario
    I disagree, Berserker is an excellent RTA I can recommend it to any MTL user. The juice consumption, flavour/quality of vape is the same. KP has JFC and a bit more airy. Aside from the higher price point (which is important for many) those are 2 main differences.
     
    • Like Like x 5
  9. traianescu

    traianescu Senior Member ECF Veteran

    Sep 2, 2017
    right now, Berserker have the tightest draw in the world :banana:

    the thing that will be difficult in the future, will be to find the o-rings for it, the 2 that holds the glass tank are really strange..
     
  10. Cosmic_Glaze

    Cosmic_Glaze Super Member Verified Member ECF Veteran

    Jul 26, 2016
    I hear this question on the forum all the time about juice consumption of a tank. Can someone explain how a 2 tanks with the same exact build at the same wattage can differ in the amount of juice that it goes through?
     
    • Like Like x 1
  11. traianescu

    traianescu Senior Member ECF Veteran

    Sep 2, 2017
    i'll give you two known tanks - nautilus mini and nautilus 2... the new one consumes more, with the same coil
    i know what you mean, about coil, airlflow, etc.. but as from the example, it is not the same..
     
    • Like Like x 1
  12. soulseek

    soulseek Ultra Member Verified Member ECF Veteran

    Aug 12, 2013
    London, UK
    The fact that an RTA, manufactured in China and 1/4th the price, is even comparable as an experience to the Kayfun, is very telling.
     
    • Like Like x 6
  13. stols001

    stols001 Mistress of the Dark Nicotinic Arts Verified Member ECF Veteran

    Supporting member
    May 30, 2017
    Tucson, AZ
    IDK the answer to that one either. I have other mysteries, like why on earth does the Kabuki tank (which takes Nautlius coils) cause my coils to last so much longer. Oh, they taste better too, but the mysterious coil life gets me wondering-- I do think maybe the fact that it is 3 ml instead of 2, that and maybe the "revolutionary" airflow which I have almost closed off, LOL. I think tanks just have mysterious differences, and I'm not even going to try to understand....

    Anna
     
    • Like Like x 3
  14. traianescu

    traianescu Senior Member ECF Veteran

    Sep 2, 2017
    @VictorC , after a few other days, any new impression ? One of these must be a better mtl tank than the other one ;)
     
    • Like Like x 1
  15. VictorC

    VictorC Super Member ECF Veteran

    Jan 26, 2015
    Toronto, Ontario
    After vaping them both side by side for couple days, my subjective score remains same :) Really great MTL experience.
     
    • Like Like x 2
  16. rootlinux01

    rootlinux01 Full Member

    Oct 25, 2015
    Great review

    Sent from my LG-LS997 using Tapatalk
     
    • Like Like x 2
  17. traianescu

    traianescu Senior Member ECF Veteran

    Sep 2, 2017
    @VictorC which one are you using more? Which one gives better flavour ?
     
  18. evan le'garde

    evan le'garde Vaping Master ECF Veteran

    Apr 3, 2013

    When you say "smooth draw" do you mean there is an absence of throat hit / kick ?.

    If not then could you please state whether the Prime produces a profound throat hit or not.
     
  19. VictorC

    VictorC Super Member ECF Veteran

    Jan 26, 2015
    Toronto, Ontario
    TH is mostly dependent on the nic level and PG/VG ratio in the juice. I am getting very similar TH with both because my builds/eliquids are the same. Smooth draw = consistent from start to stop with no turbulence.
     
    • Like Like x 1
  20. evan le'garde

    evan le'garde Vaping Master ECF Veteran

    Apr 3, 2013
    You're getting similar throat hits with both but is the throat hit from the Prime satisfying enough.
     
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