Hartzell 8068+2 ???

I've been trying to decide what prop to run when I Pponk my 180 this winter. Looking at Pponk website a 84" Hartzell pulls 15# less static than a 86" 401 Mac on a O-550 at 2700rpm. I assume results would be similar on a 470-50?

I've been told the Hartzell is 6 knots faster than the Mac.

Anyone here have experience with the 84" Hartzell?

Call Steve Knopp and pick his brain.

What is this, SpamCan.org??

You might see what some of the aerobatic guys are running;-)