Same here. Engine seemed to like the 185 range. Are you just getting new Sirio bearings or ceramics? I ran Maxy's 25%, but I was more into running 16% or 20%. I don't want to kill the engine too quick. I'll be dropping on the Sirio tuned pipeset soon. I'm waiting for the Kyosho pipeset for the Spada to come in this week also. I also have the flywheel coming also.