I have a 09 Bryant 210 with a 4.3 and alpha 1 outdrive it has 244 hrs on it. Today going about 25 mph it laid down in the water my first thought was I just lost my prop but the rpm's didn't spike real high. There where no funny noises didn't feel like it poped out of gear. It has the Mercury Enertia prop is there anything there that could slip? After it did this we drove back across the lake slowly 15-20 mph no problems. any ideas? sorry if it takes me a minute to get back thanks.