Testing different options. Brushless motors do need to be balanced before props go on!
This video to give you an idea to balancing Motors. I first started with wire tie around motor and listening to my adjustments, "this got me close". Then I tried a pen Lazar laid on top of the arms, secured the Lazar with rubber bands and let dot hit the wall. Made more adjustments to wire tie till the dot got smaller.
(Look for a free App Seismometer for the phone) I started this video with my best motor, Rear left arm, and with all the testing all is good. My Front left arm has been a problem and so did the Back Right motor the hub has some wobble to it, "seemed to need more attention.
Now it's time to put the HT-FPV frame together and get it in the air and see how the vid is looking. If it's crap, at least I have an idea what motors to replace.