Originally posted by InitialD
If I was running 20% nitro, I would leave the stock aluminum shim (0.3 mm). But this depends on the ambient temperature around you. If hot and humid, I would add 0.1 mm (bronze) shim to the stock (total 0.4 mm).
Okay, there is only the 0.3mm shim in the motor right now so I should be good to go. Thanks for all the help.
