I tested out a couple props on my Suzuki DF 20A EFI/ Skimmer Skiff 14 (Old IPB14) and tought I would post the results as a point of reference for others. The engine comes stock with an aluminum 10 pitch 9.25" prop. With two in the boat and gear, I was getting 24 MPH top speed by GPS with no tabs or hydrofoil. With the 10 pitch prop I occasionally hit the rev limiter and the engine sounded like it was spinning a LOT of RPMs (I don't have a tach). I switched to a Solas aluminum 11 pitch 9.25" prop with the same two guys in the boat, I was getting 25 MPH by GPS. I never hit the revlimiter and the engine sounds like its turning slightly fewer RPMs. Today I was out by myself. I installed a Marine Dynamics Stinray XRIII Hydrofoil. I got a top speed of 26 MPH by GPS and the boat gets on plane much quicker.