Hi guys,

Following the post I thought I'd provide a couple more answers.

First, perfectly straight on the shaft, the QuikSpin spins about equal to or slightly greater than a 5 inch helical feather wrapped at a 3 to 4 degree helical.

at about 1 degree offset (or 1/16th inch over the 4 inch vane length) the QuikSpin will approach 3000 rpm or about twice as fast as a 5 inch helical feather.