I got the .1mm shims for the motor to use 20% nitro. I took off the head, removed the combustion chamber, and discovered there weren't any shims in there. I assume the sleeve had the shim spaced built into the head so I put the shim under the combustion chamber and put it all back together.

Did I do this right??? I'm not going to fire it up until for another week but I wanted to check with you RB guys before I do so.