After a ton of obsessing I've settled on this as the Perfect whoop. Must stay under 19grams, and the 17500kv plus HV batteries are absolutely perfect for tight indoor areas.

I love my faster gold motor build, but it serves a totally different purpose and gets smoked by this 17500 build in tiny tracks. 8k/2k loop, tune those PIDs high, PT1 with only dynamic filter. It should fly on rails, not floaty.