The original post used a 4" gear track screwed into the hull.
Instead of adding the gear track I just drilled out the pre-exiting hole in the factory metal bracket so the Yak Attack T-bolt would go thru. I did have to trim about 3/16" off the end of the bolt to get it to fit between the hull and the bracket.
The advantage of using the gear track is the any Mighty Mount accessories would fit. I think the advantage of just drilling the hole is ease of project, you don't have to buy gear tracks, and no drilling holes in the yak.
I finally got out on the river and had a chance to use the new rod holder. I really like the location/s available by having the Ram ball mounted. The only issue I can see is that because the ball is mounted down on the side it doesn't allow the Ram Tube to lean out very far over the side of the yak. Not a huge issue, but something to be aware of.