Thanks for the help everyone. I decided to go with 3/8" poly rope. Went with DD's suggestion of the overhand loop knot for the jam knot and connected and tensioned it all via a truckers hitch. Finished product feels great. I can already feel like i'll have more leverage just having my a$$ planted better than it was on the cushion. We'll see what a few trips with my 210 lb. a$$ does to it, but for now I'm happy.



Now on to better rod storage for the boat, but this will be another topic.