Our last charter was in the Abacos on a Dream Yacht Charter Lagoon 420. First time in the Bahamas, and first time on a big cat, but I have a good amount of experience on 38-50 ft monohull charterboats in other locations. We were delayed arriving a day due to Sandy's aftermath down there, and we delayed leaving the dock another day due to strong NW winds (very unusual).
Checkout was no different from my Sunsail monohull charters, other than some focus on the two engines and generator, and the chart briefing post Sandy.
When we did leave the dock, we motored into 25-30 kt winds leaving Marsh Harbor before falling off to a beam reach headed for Man-o-War Cay. We raised the main to a double reef size and after a while, let out about half the jib.
As a monohull sailor, my surprise was in how seemingly ineffective the steering seemed to be, especially before unrolling the jib. We used the engines to help steer at first, but after deploying some jib, shut them down. Things got better, I learned to be more patient with steering inputs, and we made good time
The fun part was the entrance to the harbor at Man-o-War, which is very narrow and the wind was howling at 90 deg across the entrance. The engines proved their worth as we crabbed at about a 45 deg angle to the COG through the opening. See picture, the starboard hull bow is pointing in.
So lessons learned were to spend some time the first day learning to appreciate the engines, approach the docks carefully considering what the wind is doing (due to the enormous slab sided hulls) and as a beginner, don't be afraid to start one or both engines to help you through a maneuver. You'll get used to it and have a great time.