On my 60 ZDZ =I try props which load to where the manufacturer says best power (max torque) is occurring .
I tried cutting down and reshaping bigger props to get a wide very stiff blade.
Although it takes a bit of work - the slightly smaller diameter very thick hub and paddle blades really have the best performance for aerobatics -in that pull from stuff like double up snaps is better.
At sea level -maybe this is not a good setup -but sure works at our 4500 ft elevation.
A side benifit is extremely low noise level.
should work on any engine