i used the gasket on the ats hat,but not sure id try it on the banks.the banks pressure chamber has a rounded indent cleanly made to fit a round o-ring.
doesn't surprise me that one with lots of black atv sealed good too though.she'd simply fill the whole groove in.but really there isn't any reason to do it like that with the banks chamber.
id just take your pressure chamber off and take it with you.set the o-rings in the slot.you'll know when it's the right size.pretty simple.carry it around wrapped up good in a box though.would suck to drop it.