I recently purchased this boat. It has a 115 mercury 4 stroke. I have had it out 4 times now. With the stock prop and a light load I could only achieve 37mph @ 5200 rpms at wot. Stock prop is a 13.25 x 17 black max 3 blade. I could not trim the motor much at all before the prop started to ventilate and slip. I did not get much bow lift at all. I tested with a 13.25 x 13 rubex 4 blade. I hit the rev limiter easily with a light load. Fully loaded I was hitting 32mph @ 6000 rpms at wot. I could trim the motor higher and achieved more bow lift. I just purchased a 13.5 x 15 hustler 4 blade. I hope this will give me more acceptable numbers. I called the shop and asked them if the stock prop was correct and they said it was. Well it’s not acceptable to me. They need to outfit this rig with a different prop when the boat is delivered. I hope this can help someone out with this rig.