i know this is a very old post, but I would like to bring this subject back to light. I am currently looking to do something similar and i would like to see some more pictures of your set up. and if you could repost the original picture that would be great, it is not showing up now.toolmaker said:this is a picture of my 16 foot alumacraft towing a 350Lb fiberglass two man layout. I used two !" dia aluminum bars and fitted them to a junction block that also held an eye bolt for the tow line. I leveraged the bars down inside the rear handles on the transom and bolted through to the transom( so the bars would not slide down)... I took a support line on each side of the boat from each oar lock back to the junction block to take some of the load off the transom. I used a specially made up "harness" that went around the bow of the layout using the cleats on the layout and I attached my tow line UNDERNEATH the bow...since the special harness was fastened to the cleats the line didn't try to spin around the bow...it stayed put...and my attached tow line stayed UNDER the bow...help with lift.
this system worked great and I could actually cruise at 20 mph, as long as the waves were not to big and I didn't take turns sharp
I adjusted the length of the tow line from inside the 16 foot alumacraft to allow the layout to ride on my first wake