I bought my cougar in July of 2011. Since I bought it I changed the 6″ slide master jack plate, and went to an 8″ bobs jack plate. The boat is powered by a 2003 mercury 250xs. I have been trying to find the best prop, presently am running a 27 fury . Best speed I have seen with fury is 76 mph, prop shaft is about 2.75″ below pad. Tried a 27 txp ot4 it ran 78.5 but hole shot was awful. Thinking of trying 28 bravo xs. Anybody have any suggestions?