Well, I finally got to take my plane up with the new three-blade Elippse prop. It was designed to give me 3000 rpm at best power mixture at 14,500 dalt at 204 mph TAS, and 221 mph TAS at 3250 rpm and 1000' dalt. With it I got 2550 rpm static vs 2210 rpm for my first three-blade. I only got to do a few circuits around SMX so I throttled back to 2650 rpm at 3000', 4500' dalt, and got 171 mph TAS avg GPS GS at 5.6 gph. Climb was sensational; I got 1700 fpm average at 3500' dalt at 105 mph IAS and 1320 lb vs the previous 1550 fpm, 105 mph IAS, and 2420rpm! Not too bad for only 125 Hp O-235. The prop was clocked so that when it stops, one blade either points straight up or straight down and it runs very smooth; Catto did a nice job on it and its paint scheme. After I get some more time on the prop and venture further, higher, and more rpm, I will also try the prop in the other two positions to see if I feel any roughness from the prop position relative to TDC as I said I would do in a previous post. When I get my loaned two-blade modified prop back I will test it for roughness also in all three positions. I loaned it to a fellow who had a three-blade Ivo on his Lancair 235 that had one of the two 5/8" bolts holding the blade to the special flange come off and dent the inside of the spinner. The two-blade increased his ROC from 800 fpm to 1300 fpm and his TAS from 167 mph to 188 mph at the same rpm. He has a three-blade Elippse on order which he should get this month, so we'll see how much more performance he gets with it.