I'm looking to figure out this micro apex formula. I've tried a 4in with 2004 motors, I tried a 3" with 1507 motors but 5" arms with 5.1" pb&j biblade props on these 2203.5s on 6s are pretty fun. I wish they'd do a 3.5" arm for this. I went overkill on most of the parts considering the motors but it was what I had on hand. I didn't decase the vista that I pulled off a new quad I picked up on sale.

Needs some tuning. also I swapped the iflight vtx antenna for the stock one. I gotta dig up some footage.