Not sure if this helps, but the One Vision Thunder runs a 28 Labbed bravo. Funhome & I tested quite a few props and found the 26 Hydromotive to be VERY close, but handled a litle better. For some reason, the boat didn't like the stock 26 Bravo at all. Lost speed and rpm's. We then sent a box stock, (new) 28 Bravo 4 blade to a place in Wisconsin, (GAWD I wish I could remember the name of that place). They lab finished the prop much like Mercury did, but we asked to have some of the bow lift taken out. (The 25 already has a buttload of bow lift). This gave us .2 mph faster top speed and handled as good as the Hydromotive and improved accelleration.
final numbers were 81.7 @ 5200rpm w/ two people at approx 800' elevation, hot day running low on fuel.
Hope this helps.