I've been vaping since March 28th of 2010! I would like to consider myself a well versed vaper although not an expert. I started with an E-cigarette (actually looked like a cigarette) that someone else got for me. It was pretty crappy but it made me think there had to be better out there. I then purchased Blu cigs, (another crappy cig) and then moved to a company called "Revolver" which also looked like a cig. Not long after that the eGo came out and I switched to that. after that I talked my wife into getting me a Pro-Vari. One of the first versions (un-usable now) and got a glass carto tank. I made my own carto punch and was content with that for some time. then the Pro-Tank came out and I got one of those. I soon learned how to recoil the Pro-Tank and was rocking that until the Kayfun came out. I had already been making coils on a small scale so...Why not? So I got a Kayfun lite clone. just recently I got a Kayfun V4 clone from KP. I use 28g Kanthal and wrap on a 5/64th in. drill bit. Usually 7-8 wraps so I'm not a sub-ohmer. I'm not happy with the hugeness of my V4 and am looking for a new tank. There are alot of tanks out there so I figured I'd ask the forum. What I'm looking for is a tank the size of a Kayfun lite or smaller, holds 3-4ml of juice, single coil. Any advise would be appreciated. Also, anyone know anything about the SMOK RSBT?