Have actually compared Xoar 22/8 and Menz 22/8 both flying at the same time on TF p-51's, both with g-62's set up identically. Menz seemed to be slightly faster, engine sounded like it unloaded a little more. Xoar was right in the same ballpark. Interestingly the same p-51 with the Menz flew quite well with a std Zinger 22/8. It is really hard to compare props by RPM, Pull, Sound as it is such a subjective determination. I have had planes which flew better with a prop which no way would you expect the results you get. Example, my TF-Corsair flew better with a wood Master Airscrew clunky prop than it did with a fancy shmancey carbon fiber prop. Sometimes perception and reality don't match. I used to get the late lamented English magazine RC Scale Intl. and always got a kick out of the pictures from English and international scale contests, especially when they would show some top scale modeler flying his world class plane with a MA black plastic prop. I guess that is where the saying "different horses for different courses" comes from. Some times I think that this forum gets too caught up in what is considered the ultimate prop, or engine and forgets what just works well. I am reminded of another of my favorite sayings. This is attributed to a Russian admiral, he said, " sometimes perfect is the enemy of good enough" I know that engine X or prop Y aren't the ultimate but you know what? They do the job. Watching some poor slob mess with his "perfect" engine while I enjoy flying my " good enough" engine until it wears out gives me a perverse satisfaction.

Larry