I finally managed to get out and do some new prop comparisons on my DLE-55 to which I put on a new V2 head, and new top-end. It's had about 8 tanks through it, and last night I ran some performance numbers. Each prop was tuned individually for max RPM, and all thrust & RPM readings were taken 3 times to ensure accuracy. Every test was executed twice all around as well to ensure no variability. All readings were taken with engine at FULL HOT running temp w/ average peak RPM readings (no brief RPM peak numbers were used).
+15*C, 3500ft ASL, 50% RH, 0kph wind, 87oct gas, 40:1 Stihl Ultra:
Hawk wood 22x8: 7110rpm @ 27lbs 12oz thrust
Xoar sword 22x10: 6390rpm @ 26lbs 4oz thrust
Xoar CF 23x8: 6870rpm @ 27lbs 12oz thrust
Falcon wood 23x8: 6450rpm @ 26lbs 14oz thrust
The most impressive prop in the pack when it comes to static thrust & speed/rpm for it's smaller 22" size is the Hawk 22x8. Really makes me wish I had a Hawk 23x8!
In flight I like all of them, except the Falcon. It's WAY too slow moving due to low rpm for 8" of pitch in comparison to the other props. Overall my favorite props I've tried including others from friends I don't own (and werent in yesterday's tests) are: Mejzlik 23x8 & my Xoar CF 23x8 as above. I also liked the Vess 23A if you were solely into 3D down low, but when mixing sport & IMAC flying like I do, it's just too slow. Thrust on that vess felt similar to the Mej & Xoar CF 23x8 as well.
It's interesting to see that my same 22x10 Xoar sword is turning 400rpm less on this new head/top end than the old head was. May just need some more break-in time though. Odd, as the Hawk and others are turning nearly identical RPM they used to. When testing I didn't believe it, so I retuned and ran that test 2 additional times, yep it's correct and max tune RPM. Could also be variation and drying/warping of the wood props over time.