I fly both Xoar Sword props and Hawk props on my DLE 55. The Hawk props actually have slightly stronger pull on the uplines, but after measuring and going over both 22x8 props, it's due to the slightly wider blade at mid. RPM are comparable, but about 200rpm less on the Hawk 22x8 (7210rpm) vs 7410rpm on the Xoar 22x8 Sword. Great props, but now I'm sticking with Xoar due to availability, looks and ease of purchase. I run the 23x8 Xoar/22x10 Xoar.