AVS3 is the UFS. We had the AVS1 and AVS2 but this is totally different so I named it UFS. Uninterrupted Feeding System
I got my UFS set up with a LR 510 and an 18650 battery. It's INCREDIBLE. I've been using 6.0v with 808 cartomizers for so long that I was nervous, but this is a real treat. It was well worth the wait!
Thanks, Imeo!