I really like the Loki-X4 by Storm Drones. Highly recommend this build for so many reasons. This little guy weighs in at barely 223 grams, with Cobra 1806 2540 KV motors coupled with Q4040 bullnose props by Dal. The main reason this quad flies so well is it's excellent CG . The Loki-X4 frames are well thought out designs which translates into one nice flying experience. This quad literally handles like an Indy car in the sky. so nimble and perfectly balanced, so easy to fly hard. The other is the 167mm frame with narrower arms (less drag) 4mm plate, T-Motor F30 2800 KV motors, coupled with Dal Tri blades. The remainder is the same as this build. The only thing I would change on the Loki-X4 frame is the antenna position. Not good having it sticking straight up like this, the reason I mounted a "stubby". This does not bother me since the flying experience is so much fun.