maybe I am just too fussy. :
I figure that if I set things up to the nth degree then come raceday
hopefully everything performs at its best and only my driving ability will seperate me from the fast guys.
some brushes take forever to break in and by that time they only loose there life span ...
I actually break my xxx brushes in for more than 10min but thats only because they are so hard. I think it pays off in terms of not having my motor go soft in the middle of a race day.( 12t )
I guess every body has their favorite methods but I try to follow what the good guys do, as I figure they are up front for a reason and I want to learn from them. Later on I can discard what I feel isnt necessary.