chane,
That is a nice design. I sure wish I'd had that instead of the traditional one that looks like a "C" clamp.
I needed to change my prop once and decided to do it while the boat was on a Hydro Hoist. I made it and didn't loose anything but when the prop "Pops" off from the press on, wow is all I can say. I was lucky not to drop anything.
Seriously, you might be able to market that!
Good luck,
D out
www.NVS1.net