Diatone (SunnySky) 1408 4000kv Extra Crunchy DO NOT BUY!

Diantone 1408 4000kv motors. (sunnysky) Didn't go well from day one. Hours of troubleshooting before I realized it was the brand new motors are just crap. In my ecperience at least. the bearings seemed ok at first during the build. Just gave them a few spins. Immediately on the first flight the oscillations were horrible! after going through each and every other component, I finally happened to feel one motor "catch". Damaged a 4-in-1 ESC too after all the troubleshooting. Banggood of course does not want to refund me either. Personally I will stay away from these "Extra Crunchy Recipe" motors.