DLE-55, 15*C, 3200ft ASL, avg. pressure/humidity:
On the 5th tank at 30:1 dino oil:
Hawk 22x8 = 7250rpm
Xoar 23x8 sword = 6750rpm
I've just ordered a 22x8 and 22x10 Xoar to try as well.
EDIT:
Holy cow!!!! New results after 4 gallons of fuel, still at rich 32:1 dino oil. 25*C and 0 wind. Tested and confirmed with 2 tachs and multiple people watching:
Xoar 22x8 = 7410 (peaked at 7480 fully leaned)!!!!! HOLY CRAP THIS THING IS AMAZING. I can't wait to try Stihl synthetic @ 50:1 for even more rpm.
EDIT2: Alright I'm on to the 45:1 Stihl synthetic!!!

Xoar 23x8 = 6780, confirmed with 2 tachs. Love this engine!