Hello again. I wanted to throw out for debate the idea of using a gooseneck slide T track on a 34' 12k displacement vessel. We have a sloop rig and the boat came with this arrangement when we purchased it. I've seen it on smaller vessels but not on many larger ones. Understandably the forces exerted on this pivotal point are great and I would imagine that there is probably more strength in a fixed mount, if fastened correctly. I do however see a few advantages with having the track and car arrangement. Namely, the option of sail flexibility if we came across used sails or were in a bind, and compensation for luff stretch. To be clear, we would still be using the Cunningham or main halyard as the mechanism for luff tension, the gooseneck car would have a pin so it can be locked in one of six locations. If the track is thru bolted and backed with jam nuts, the most likely point of failure that I can see would be the the car itself, I think I can work something out with a local machinist to cover that, he could easily make something out of a stainless billet. Does anyone see a major disadvantage to this setup on a cruising vessel? I like the idea of having the flexibility. Any input is appreciated, thanks!