So here are my thoughts on the Kayfun Prime.....
I ordered it from Originvape.com this past Wednesday night. Received it Saturday, I'm super happy with Origin Vape. I also ordered the expansion kit. I've ordered a few products from them, and have never been disappointed.
Threw in a .55 ohm 2.5mm ss316l 8 wrap (think it was 8 wrap) coil. Vaping in temp control on my SX Mini G Class. 420 degrees and 30 Jules. Really happy with the tank. Everything you would expect from Kayfun, and any other products by SvoeMesto. Tight draw, and a true MTL tank. Super happy.
Some things that made me nervous about dropping close to 150 dollars (after shipping, expansion kit).
1: Is this any different than my Kayfun 5, or my Kayfun Mini 3 clone? I can't tell much of a vape difference between the two. If there is, it's far from a night and day difference. Keep in mind, I was using the mlt kit (1.6 piece) on my KF5. If there isn't a difference, not sure if it's 150 dollars worth it. Build deck is tiny such as the Kayfun mini 3. Drip tip is better than what was on the 3. I remember when I first got my Kayfun 5, I had to replace those orings after about a week, and it seems like a few people had this issue with the KF5 where it was leaking. I have no issues with the Prime leaking. It does seem a bit stubborn when turning the juice flow control, not bad by means, and hope it goes away with time.
2: Looks like a baby version of the KF5, is worth the money? Not sure if it's just all mental, but this looks like a different tank all together. It's hard to explain, just looks different. It's really close to the same tank, but yet different on the same hand. Maybe cause it feels so much lighter than my KF5. I even threw the expansion tank on, and it's feel much lighter than my KF5. One issue I had with my KF5, is that it felt very top heavy. Not with the Prime, or even with the expansion kit on. With the expansion kit, it's still shorter than the KF5. Not by much, but it's shorter. Keep in mind, I did have a color glass on it for the tank, so maybe that added some weight to the KF5.
3: Would I buy it again.....Yeah, if I had the money burning a hole in my pocket. I don't regret buying the Prime, not one bit. Expensive yes.....Worth it, yup without a doubt. I've had a few different tanks over the years. Guess what, I always go back to my KF's. Just good solid tanks that last. Those cheap 20 dollars just get boring, start leaking for no reason after some usage, not a true MTL, etc etc etc. Boils down to most things in life. You get what you pay for.
4: Will this fit on my Provari Radius better than my KF5? Yup, sure does. My KF5 seemed like the 510 connector was too short and needed to be a tad bit longer. To me, it looks like 510 on the Prime is just a tad bit longer than the KF5. Fits on my Radius without any issues. Too bad 'coil control' is far from amazing on the Radius.
Things I would change with the Prime/SvoeMesto.
1: I would love to see a black version of the Prime.
2: As mods have got bigger and bigger over the years. I would love to see a MTL Kayfun bigger than 22mm, and can hold more than 2-3ml of juice. Yeah, there is the KF 5 Square coming out, but from my understanding, that isn't a MTL tank. Yeah, there is the expansion kit, but even then. It feels very tall. I'm just picky, and want the best out of both worlds.
3: Airflow ring. I haven't seen anyone mention this. But......it seems like the JFC (juice flow control) only needs to be twisted about 1 rotation for the juice to flow. But, you can't make adjustments to the AFC (air flow control) ring, unless that JFC is twisted about 2 times. Maybe it designed like this on purpose? Just another difference between the Prime and KF5. Should I be giving two rotations when opening up the JFC?
I should also mention that the top cap that you remove when filling the tank.......Feels cheap. Feels like something you would find on a tank from China. I understand why they did it, and it helps with the weight, not making it feel top heavy. But it also feels like I could bend it half with my fingers compared to solid cap that came on the KF5.
Enough of my yapping. Love this tank, no regrets. Prime is what you would expect from SM. Hope to get a year and half of happy usage out of this, like I did with my KF5. Expensive yes.....But for the 150 I dropped on this, is still much cheaper than those nasty cigs. I was dropping around 200-300 dollars a month on cigs, so yeah. It doesn't take much for me to justify 150.00 (after tank, expansion kit, shipping) on a good tank. I remember a few months ago I dropped 35 bucks on a tank. Stopped using it after 2 days due to it leaking.