Originally Posted by Chris Peralta

Honestly you should be just fine to run 30% with the stock engine shimming. You can add the .1mm shim to help the breakin process go a bit easier but there will be no problem pulling it out after breakin is complete. If your going to run more than 30% then you should start adding shims.

As for the P/S/R I am not sure where you can get that set. I would think A-Main should have them available soon if they are out right now. Many of RB's engines use the same piston sleeve and rod.