I love the Turtleship. I really do. I have the V2, the special edition tube, and a zodiac drip tip. RJ Mods puts out good stuff. My only gripe is the locking ring. Not sure if this a common problem on all mods, but on mine, my 18650 aw imr button top rattles. So I adjust the delrin piece at the bottom. However, when I adjust the locking ring, sometimes my firing button rotates as well, which causes the firing pin to rotate, which causes the delrin piece to rotate. There have been times where I've accidentally unscrewed the firing button all the way trying to lock the mod. Because the locking ring is more of a pain in the ass, I don't use it. But I learned my lesson. Firing button got stuck overnight. Melted my kayfun. Fried my battery. Best part? Kayfun is stuck onto top cap. So...be careful. Clean all the threads on a daily basis.