new BL set-up

[thiv_md]

Just got a 9920 and Lehner 2800XL for my E-maxx. Now I need to make sure the rest of the drivetrain can take the abuse. I'm not going for all out speed runs. I want to have some fun down at the track and maybe give some nitro guys a run for their money.
I assume upgrading the spur/pinion is first. Heard bad things about Robinson slipper clutches having "wobbly" spurs and wasn't sure about metal vs plastic spurs or spur size either. Any experiences good or bad? It's a given that I'll get a set of steel idlers shortly. Any other suggestions before I try to fire it up? Thanks.

JJ