Chris, a 25 pitch prop would probably be too much on a Sabre/150 set-up. I dont know what maximum rpms youre turning with the 23, but youll probably loose 300-400 rpms on top end by going up to a 25 pitch. You want your engine to run at the high end of its maximum rpm range when running wide open. If you went to a 25 pitch and it would turn say 5200-5300 rpms max at WOT, it would be lugging the engine, which causes dangerous detonation, and can damage your engine. As expensive as these props are, I would see if a dealer has a demo Tempest in a 25 that you can try before you buy. Also, your holeshot will be a lot slower with a 25 pitch prop. I switched from a Tempest to a Trophy Plus on my Sabre. In my opinion the Trophy is a great all around prop. You get an improved hole shot, better handling and the Trophy basically eliminates chine walking. Also, the major difference between a Tempest and Tempest Plus(Trophy and Trophy Plus also) is that the Tempest Plus has the adjustable PVS plugs that allow you to dial in your holeshot. Good luck,Kenny