Juan, I have had the same issues. A new North main had different size slugs at the full length batten ends. So the gates had to be adjust to allow the larger slugs but not to big to allow the smaller slugs to fall out. I use Sail Kate to lubricate the tracks. Another issue is the batten slugs actually put pressure into the gate so that has to be considered to avoid hang ups. As to the last few feet being difficult I think it’s a combo of weight of the sail as well as the friction of the slightly swept back track. I have 2 head grommets (one slightly aft) but neither seems to make a difference in the hoist. Speed of the hoist also seems to make a difference. Slightly slower seems to prevent hangups. Best Dan #409