Im using the atmizoo roller with either a aw 650 or panasonic 650. 6 wrap 26ga @ .8 ohms. I think there may be connectivity issues because it just doesnt seem to fire like it should, on a dry fire it takes a few seconds for it to heat up all the way but all the coils heat up from the center like its supposed to. it does hit well right now its just slightly heating up at the bottom and sometimes the side of the roller, like I said I had prior problems with the center pole of the aga and having a major short with the battery basically burning me, I had a friend help me fix it by putting a O ring over the 510 part of the AGA. So basically I am trying to figure out whether it is the aga or the roller, hopefully just the aga because the roller is less than a week old.