I wanted a very smooth kwad and it's done with my new esc dshot 1200 (+tuned in BLHELI32)! ;) I also changed the ball bearings of my samguk dys motors and that makes you great cheap engines! ;) and being good enough to disconnect the batteries, I put a vifly finder. For me it's perfect budget freestyle! ;) fly time 5 mn without problem in freestyle condition at full power !