WARNING= do not use a 510 to ego adapter on a VAMO!its a bit to long and will sever the 510 connectors insulator eventually,a small rubber ring will come out which is only the top part of the severed insulator.you can replace the insulator,avid vapor has them,IF YOU can get the top cap off,i had to take a hammer n screwdriver to mine in a vice cuz trying a plumbers wrench was a no go,to finnaly get it off and i damaged the board in the process...510 to 510 adapters seem fine,some vamos are pressfit tighter than others i guess,mine was ridiculously tight...so save urself a lot of trouble and use ur t2's,evods,whatever needs them damn 510 to ego adapters on a different device,dont say you havent been warned,i wish i was.