No electric cs from Whirlwind. You are going cs? Try the Marcotte gearbox or Francois' new one and use a standard cs hub with the Whirlwind graphite blades. It's only money.
Marc

Marc,
I shutter at the thought of changing gearboxes.  The Marcotte has an offset output shaft that would require me to lower the engine, which would mean that I would have to re-do the motor mount, redesign the cooling system, exhaust and cowl (more glass work).  While I was hoping to find a more cost effective solution to the prop, I guess I will have to settle for the CS M/T prop.  I guess I can justify the cost by considering the gobs of cash I saved by not going with a certified engine (IO-550).  Don't you just love rationalization?

Mark S.