I recently built a 6S Quad but im running it on 4S. I must say Im loving the Matek Flight Controller. I have soft mounted almost everything and currently running off the Low ESR capacitor since im not using 5 or 6S. its not a must on 4S. The Video signal is very Clear and theres no noise at all.
Specs:
Loki x5 SRD199
Matek F405-AIO Flight Controller.
Hobbywing XRotor 35A Micro BLHeli.
Emax Rs2205(s) 2300kv.
Swift 2, lens 2.5mm.
RushFPV VTX v1.1
TBS ant.
Walkera Goggles 4.
Receiver XSR.
Tattu 45c - only in this vid.
Gopro 4 Session.