Tell me about it...Had to haul my 42 to NY to get the engines pulled, new ones built and dyno tuned, re-rig the transom with boxes and steering. Installed the new motors, fuel curve tested them in the water, sold my old engines for me and even winter stored my boat. All I did was pay and play. They do all their own mapping Merc or other systems. If it has pistons, they know what to do with it. Knows the difference between race engines and pleasure boat engines.
Not only that, he would sit on the phone for hours on end schooling me.
And!!! He wasn't even that expensive.