Yeah, I know....
That's why I'm even more surprised. They are drilled properly, very carefully balanced, and both are 22". Can't check the pitch, but looking edge-on held together, they "look" the same.

I'll fly them both, but it's good to know the stuff is "in there".

Someone else wrote me that his well-broken in DA only does 6600 with the same prop (NX 22 x 8), so if accurate, this is doing "okay", and I won't gripe.

Very solid and smooth transition, too. Very low vibration; of course the 'resonant' point is still there.
Idle is 1500-1480.