Sorry, I was about as unclear as possible! I meant to have it together like in the original pic, 2 pics into the airhole, one slightly up, the other slightly down. Just to see if it was possible to actually see which of the two wasn't protruding enough. It looks like the lower one isn't as high as mine (the one coming down looks to be about right). Just hard to tell. If you put a disposable coil in, and it reaches down low enough, that'd suggest it's the underneath of the rba section not reaching down far enough. Sorry I'm not being much help.
What @tobywonkanobi says - if it fires the stock coil it would seem the pin of the RDA is too short, if it won't fire either than it looks like the 510 isn't reaching up high enough
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Stock coils fire no problem.
Thanks both for your help.
Gonna eat shortly, can maybe pull it apart afters. my last comment I was saying that the pic made it look like one, but in my head it should be the other because the stock heads work. Bad photos but do these help?
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