Paradox your engine is shimmed correctly, after you ordered your engine the factory started including a extra .2mm shim. A lot of people where having problems with the break in due to the high metal pinch. If you add the extra shim during break in it makes break in much easier. After the engine is broken in the extra shim can be removed. You don't want to remove any shims until maybe after the 6 gallon mark the thin .1mm shim can be removed.
Paradoxmaker is old school he purchased one of the first 5 Go engines sold in the U.S., I have appreciated your support from day one, thanks.