Detonate the thing to destruction, thats it.

Then it's broken in!
I still don't find that my motors get any stronger with time like many people seem to claim. RPMs from day one or two don't change all that much from what I experience. ZDZ, Brison, and 3W, all still making the same RPMs from new.
Its more like this hunk of scrap motor better get stronger or else
Wishfull thinking!