I received my Peter Burford 6x4 props as suggested by Stewart and The man was right![8D]
I never spun one of those props up so fast, It is heads and shoulders over the master airscrew 6x4 I was beating the air with.
I didn't take any tach readings but the plane just ran better and faster and that little MPjett just sang.
I was just scared to put that pretty prop on a bellylander for risk of scuffing it (or worse

) but after flying it - no problem