Moto -
I have an LS and absolutely LOVE the ACME 913. We often surf with the stock gravity III tanks full plus an extra 1100 to 1500 lbs of bags. The 913 is smooth and pulls really hard even with all that weight, where the stock LS prop would shudder and struggle at times. This prop only loses 2-3 mph on the top end but offered a lot more bottom end and seems to be easier on gas. Just FYI in case you ever load that thing up for surfing.