Did a quad clapton (32/26) 2.5IAD, 8wraps on the G4 deck, came out to about 0.25ohms. Initially tried a 3.0mm IAD but couldn't get the chimney to fight without shorting.
First try with wicking resulted in major leakage (following
this review). Probably not enough cotton and it was hard to gauge exactly how much cotton was needed to hit the bottom of the build deck.
Second try with wicking I did the Moonshot method where you press fit over the deck cover and then trim the cotton to where the cover sits and then stuff them in. Resulted in slight leakage, but after a few draws it was fine.
Honestly, I don't like the vape with a quad build. Flavor is semi-muted, vapor wasn't as much as expected, slow ramp up time at 70W (gets extremely hot at 80W+ after a 3 second draw).
IMHO not worth the trouble to do a quad build, especially since the deck isn't built into the bottom piece it was almost impossible to dry burn the coils once you have all 4 in. If you're doing quad coil its probably best to dry burn the bottom 2 first then install the top 2.
Going to try the dual coil when I have time but honestly this thing will probably just sit on the shelf unless its dual coil build is better than the RTAs I have out right now. Bought this to mess around with a quad build, my first ever, def not a daily vape but was worth the try.