I have modded the Octuras exactly as you say Jamie, both tongue (funny I always called them ears 'cos they are out there flapping
) removal and back cutting Octuras and Propshops, works a treat. As you say they cavitate a bit but when they hook up...... speeeeeedd.
Zac I don't have the ABCs in front of me but that seems a lot to take from the leading edge, sure they are big blades. I can see this is going to take guts..........