Been using flatwire coils exclusively for about 4-6 weeks now. Decided to put a tri-core fused clapton (28x3 wrapped with 40ga) in a Haku. Weaksauce! Flatwire has spoiled me. Vapor seemed weak, not as satisfying.
My homemade Daedalus will collect dust now. Once you give Flatwire a chance, you're done with the round stuff.