Been staying out of this, but I think its time to speak my mind.
What does 70turn "armature only" class mean. Outlaw 70turn? Different cans and magnets, shorting armature winds, clocking comms?
Sounds stupid to me, lets just run mod open aaa(no lipo) class, that way no one(Ed, yes I am calling you out) can cry.
Don't understand what the big deal is. We have been running Silver brushes with your knowledge may I add, for years. I would say any racer that likes to tune will eventually run silver brushes. Why not, especially if its time to replace brushes.
Lets stop crying, what do you want, to win races with NO EFFORT!!
If you are crying about motors, next you will be crying about batteries, tires etc.
Racers need to admit that they are being beat by better racers, I did, that's how and why I got better.
At the end of the day "The finishing order of the races will be the same"!!