That's about where I am. 1 and 1/8 of a turn out on the high end. The motor runs 198 degrees. I hear the motor makes best performance around 240.
Regarding the difference agian, there is also the lightened piston that is also made out of different aluminum I think with a higher silicon content. There should be updated piston and sleeve assemblies later on in the year. The R-spec is not the same as the E-spec listed in the manual with part number breakdown.