I certainly don't want to offend anyone here, or no longer here; but I have often wondered why end-users (us, or at least me) would think that they know more about a particular product than the engineers who had designed that same product.

R/C is competing for $$$ at the margin, at least for the most part, and one would think that the manufacturer would provide specifications that provide optimum performance for a particular product. After all, if one's Saito does not perform well, someone else's O(ther) S(tuff) may!

No doubt, the specs may not provide the ultimate performance for every particular (in this case) Saito. But, those specifications will probably provide excellent performance from all most every (in this case) Saito. Producers do have to deal with production variances. And, in fact, there seems to be very little perceptible difference among Saitos of any particular displacement. The consistency is rather amazing...at least to me. I am not an engineer, machinist, or mechanic, so perhaps I am too easily amazed!!!

My Saitos are all maintained within Saito's specifications and they all run very nicely.

To each his own.