My thinking with a Bolly CF prop would be, the lighter prop would spin up faster. I am running a OS 50 heli version and it spins up great with a APC 12-4. Didn't care for the performance of the 12.25-3.75. If the 13 Bolly would spin it up fast, that would be really worth trying.

I have talked to Falcon, I think, about the CF Bolly Props, however they never had any.