Yes it is new got about 6 flights on it.
Pe, I picked that prop as it was middle of the recommended range in the manual. Its not on a good pipe just the Bisson wraparound wityh the tips sawn off.
Maybe try a Mejzlic at 24/12...I dont have that much clearance. It seems this is way stronger than a ZDZ60 then as that motor struggled with a 24/8
The motor is on a Wild Hare Ultimate which it pulls out of sight.