It runs great on top into high 50s MPH and they have a fine hole shot empty. Loaded the engine has plenty of torque and propeller choices on all small engines revolve around your load.
I rode in that Margay at the OI and was highly impressed with how it rode and turned, and was extremely impressed with how it ran with that 115 4 stroke, I believe he got it around the mid 50s with us both in there.
1 more question: will the Vinyl Esther Resin on 40% of all outer laminate upgrade impact the overall weight of the Margay? Will it make it even slightly heavier?