We use a cantilever lift for our mastercraft DD. You should look out for a couple things.
1) is there clearance for your driveshaft when the lift is in the up position. We had to buy a special rear arm assembly specifically for tournament boats.
2) How shallow is it where you're putting the lift. We are in relatively shallow water and there has been some low water years where the lift didn't go low enough to get the boat on it. We actually had to dig a trough so the lift could sit lover in the water.

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