I maight be interested in borrowing (with a deposit) a prop from somebody here in the future to check performance differences woth differing props. Right now I have a Prince P-tip (wood/composite) 52 x 50 And right now with wheel pants I just turned it 3900 rpm. After I put on my ram air nozzle I can expect it to go higher. As of now my top speed has increased to about 185 or so but that is just preliminary since ive only had one short flight with the wheel pants. I will be doing some climb and cruise tests shortly to get some hard numbers. I am looking for a prop with SAE1 pattern - for corvair. Hoping for something in the 54-54 arena. Maybe a couple inches longer and a little more pitch. Whatever might get me more speed. The climb performance is great right now - Ive had it a 14500 and still climbing. If you have something that might fit the bill - let Bill know - Thanks.