I ordered a BJ MVP and some TRIBO a while back now.
First time I ran the motor I think the bushings were still a little tight, unfortunately this was at our on-road nationals and I resorted to an MVP I had tuned myself. I ended up running the BJ motor at a few clubdays afterwards, to loosen things up a bit.
Last weekend, I cleaned it, skimmed and replaced the brushes for a meeting at one of the larger tracks in the country. I thought that getting a good gearing sorted was going to be a bit of a mission as the circuit is huge. Long story-short, I ran 5.69 to 1(MR4 SP), PEAK Viper 135+ and 115- springs and #766 Reedy brushes and the car was a rocket. Finally.
Due to only having to slow down for one hairpin, the motor did the 3 qualifiers and 3 finals without maintenance being required. I didn't use the Tribo on the comm, just on the bushings.
Very Happy with the motor now and I'm looking forward to getting one of the new "CO" motors from Jim as soon as possible.