I ordered a bunch of F-brushes a few weeks back (Must say the order process is excellent
) and decided to try them last weekend.
I used a Fantom 19x1 Hand-Wound arm (not a spec. arm) with the new F-brush instead of my trusty Reedy 767s.
After running in the motor for 10 mins and letting it cool down I was down 10 Watts (5%) on my Dyno (Robitronic), also the motor felt "flat" on the track. Changed back to 767s and the motor was good once more.
Am I missing something or doing something wrong?