I just got a GRP .28 and having read this thread people don't seem as thrilled with their engines as some of the threads for the other motors I have been looking at (vs. the Trinity thread for example where everybody seems to be just going nuts how great their mill is) and the bulk of the discussion seems to be people disagreeing on how to keep this engine tuned. I got the GRP based on the way it has performed for the pros, the great build quality and what I hoped would be ease of tuning. I guess just looking for some reassurance that I made the right call. I was already questioning my decision of going .28 vs .21 - and after reading this I'm now questioning my decision of going GRP (instead of RB or Extech). Any positive feedback would be greatly appreciated. Would prefer to know what people think before I crack the box open. Thanks!