Okay- I have tried everything- I started with a 510 and atties and carts- honestly, was happy- had to fill it alot, but heck, I had to light cigs all the time right? THEN got a carto in a PIF trade- WOW- all in one- less hassle- but, I had to refil ALL the time. I went through all kinds. Really prefer the clear ones. I bought more, got more in trades- I had extra long ones, short ones, differnt brand names- they worked fine, but I felt i wasnt getting all my juice out. and once I cleaned them, they didnt work good again. then I stopped tasting my juice. at all. THEN, I found duals, OMG- the vape was GREAT! I bought a few dozen. but they went through my eGo/RIva batteries like they were going out of style. I had to put them to the side. THEN, I got a PIF trade (love me some PIF) with a eGo tank and 2 fluxomizers. (clear ones! win for me!!) I tried the tank first. LOVED It. so I went and ordered another- pink to match my pink Riva. got some carts to go with it. all my carto's and atties and such went into a bag- emergancy use only. The unopened fluxo's went in too- I was SOOO over carto's- if I couldnt use my clear duals, I didnt need anything but these tanks- they used ALL my juice, I could ... almost... taste the flavors, and I was getting a good hit each time. I spent 5 wonderful days vaping with tanks. THEN I got my new pink one- and I never got anything but burned. finally broke down and 'fixed' it. got it working right- btu still tasted burned every once in a while, then my traded one wasnt good enough either- I suck at this cleaning thing.... Broke down and tried this fluxomizer thing. I was mad at the tanks - I was out of carto's and atties were just NOT doing it for me. I am REALLY into the clear ones. and more than that- I prefer NO cotton in there soaking up all my good juice. I put a fluxo on my Riva and almost DIED. it was SOOOOO good. I vaped it till it cracked. I opened the last one. and ordered some more- All y'all had were the short ones, and I was vaping the larger ones. But I wasnt waiting around for new stock... I put it on- and OMG- it was JUSt as good. I could taste my juice, I could ENJOY my juice, I was in VAPE HEAVEN! I was scared to death it would die on me before I got my new ones in.... then it broke, busted, quit. my other one had a crack and was leaking. SOOOO I decided I would wait until I got the new ones in- (and they were comeing with some extra clear tubes too) I went back to the bag of used carto's. I couldnt taste anything. I got out the duals, knowing I would be going through my batts faster than I could charge them. I got out atties for my little 510's so I could use them too. Finally I dug and dug, and in the " for PIF" box I found a few carto's- differnt kinds, either bought or given to me, I couldnt remember- and didnt care- I needed nic- NOW- SOOOO I got out the 3 new carto's I had left. the battery life was KILLING me- I filled those up, and headed off to an all day engagment- this was the first time I would be away from home for 12 plus hours with just a PV. I was scared. I took extra cartos, atties, carts, every battery I owned (510 skinnies, Ego 1100 and Riva 650) filled up every carto I had- took an extra bottle, got out some atties that I KNEW were new- so none of my 'cleaning' had possibly screwed them up- and left- I stopped by the local store on my way out and there was my maillady- she asked if I wanted my packages.. UHHHH YEAH! OMG- are you kidding me?? the mail 5 full hours before she USUALLY gets to my house?? AND on the day I am PRAYING I get in some of the stuff I had bought??? I think she might think I am now crazy... well there was a kit I had bought of Riva batts and my New FLUXO'S!! I decided not to open the fluxo's yet- I wasnt going to waste the snickerdoodle I had already prefilled into these carto's. SO- I vaped them down. going through an 1100 and a 650 in just a few hours. Then I opened up my new fluxo's. They were JUST as good as I remembered. this was NEVER my expeirience before. I need to order some more- hopefully some of the larger ones- I am getting a new mod this coming week- everyone swears it will amaze me, and I cant wait to get it- I just pray that these fluxo's stay as good as they are now- If they do- I have found at least ONE part of my perfect vape- maybe the new mod will work out- maybe it wont- but these on my Riva work just fine if not. as long as these continue to be as good as they are now!! I just pray there is no 'honeymoon phase' like I have had with everything else!! Right now, I took four of them- (of the 5 I bought)- and put in my 'all day vapes' - Strawberry, vanilla Custard buttercream cupcake, snickerdoodle and my 'bed time vape' of big red gum. The cartos are put up, the atties in the PIF pile, and I really want this to be the last 'carto expierement' I participate in!! so THANK YOU!!!!