FWIW, I did some rigging on a 2007 Infusion over the weekend that included a new main halyard - the team complained that they had significant difficulty both raising and lowering the main, to the point that their halyard broke from pulling it so hard. I used a low-stretch halyard, cleaned out the mast track, lubed it with good silicon spray, and filed two pinch-points that appear to have resulted either from trailering or dropping the mast. Got a "thank you" email last night indicating that the main went up and came down on the first try. Seasonally checking the track, a good cleaning to get out the salt and sand, and using a quality silicon spray is a good idea.