I have 2 Gen 2's and on both I have a Rebirth RTA. Had one Gen 2 which has lasted me over a year now - which is quite the accomplishment with mods for me - and due to this I decided to buy a backup, but the backup has now gone into rotation, so probably have to buy another backup... Not that I need it as I have a original Drag (still sealed in box) and about 7 or 8 other mods I can fall back on but I just love my Gen 2 sooo much!