Ski Schooler on here has a nice KW boom with the boom caddie that helps save your gunnel from wear. I know he posted a picture of it at some point probably a couple years ago now. If you need help with contact info message me to get one from KW
View attachment 2820 View attachment 2819 View attachment 2819 View attachment 2817 View attachment 2817 View attachment 2817 View attachment 2815 View attachment 2816 View attachment 2816 View attachment 2815 View attachment 2816 I made up a stainless steel support the goes from the underside of the gunnel to the floor of the boat. The deck on an 18 is pretty thin in that area and I didn't want to break through with the vertical T bar. The support was mocked up in 3 pieces...fitted and tweeked until it was perfect and tig welded on the bench. I then glued it in with "Plexus" adhesive. Attached is a picture of the "Boom Buddy" I bought from Karl @ K.W. show ski to use this same boom on the 20 foot twin rig I purchased. With this you don't need the "T" bar that sits on the gunnel.
The one I mentioned is the same as the one pictured above on Bob's boat. I did not put a support under the gunnel as Bob did, but I do have my T-bar set further out to the side where it sits more on the vertical wall of the boat. A support sounds like a good idea, just in case type of deal though.