I have an enigma rda. I just got a stingray clone by infinite. I thought the switch was funny at first but upon further investigation I think the 510 connection on the enigma is fairly short. I can screw the enigma completely flush onto the top cap of the stingray. The stingray has a floating pin, but with the atty completely screwed flush I can still push the pin all the way in like it's not hitting anything. It fires, but sometimes it don't fire as hard. Or at all. So how can I get the center pin on the enigma to come out further? Is it adjustable? It's my only dripper and when it hits, it hits hard, sometimes. But I don't want to break it trying to pull the center pin out. Is it made to adjust the center pin? 