Orion 10.5 + GTB
Novak SS10.5 Pro + GTB
The novak is a friends and it's better than my ss4300. I suspect it has a stronger rotor to explain the extra torque. I tested another friends ss10.5 pro and it had a little less torque and a 1k more max rpm.
The Orion peak power is very close but peak efficiency is 8% lower.