Brian: I believe my earlier post quoting from natescape adresses the centripital/centrifugal force issue. Construct or not, the point is that there appears (at least to a layman like me) to be some basis in physics for the proposition that differences in CG that cancel each other on the see saw will also cancel each other while in motion. Gravity seems to act upon these forces in the same manner and proportion as centripital/centrifugal force.

As Scotty and Vance's posts point out, there seems to be some practical (real world) examples that prove this point. I know you are not a physics major, but do you have the knowledge to point out what you believe to be the flaw in the above equations? Flmgrip's point is the one that seems the most plausible--i.e., that the equasions do not account for flex, vibration, etc. that are present on a heli in flight. Rather, the equasions seem to assume a perfect world where none of these other factors are present. I'm still not sure I understand why or whether such factors would change the result though. I gues that ultimately the proof will be in the pudding, when I run a practical test this weekend. I will report back. Hard to believe that all you more experienced folks arguing that CG matching is necessary could be wrong, but you never know