Actually I got more then just the JBRL out of that motor. I got 7.5 series races and the Reedy truck race out of that motor! (It was done and replaced it after the first round of quals for the final round of the JBRL)
I totally agree with don't put too many runs on the motor I would say 6-8 tops. Believe it or not the arm will last longer and run stronger with more skims versus letting the comm get "hour glassed" like mom said and having to make a deeper cut.
My point was get your 3ish good runs out of the motor and then get a couple more in practice. If the motor is not getting too hot and geared properly you can stretch out a couple more good runs and then cut and rebrush!
