hey Mad, what do you mean by 2 5mm? Two 5mm ID coils? That would be impossible to fit in the chamber... 3mm ID barely fits...Just ordered some 26ga (0.4mm) Ti 1 wire and have been looking at everyone's builds on the Billow v2 with Ti.
I mean 2.5 mm ID. Each coil wrapped on a 2.5 mm mandrel. Not sure how 2.5 mm is ambiguous but maybe over my head lol.