Hi Elsie -
Lucky you - you have the best of the best - good bronze slides. In Canada, these suckers cost the earth ($25 - $30 per) so, if you ever change your sail (like I did), have the loft use these very same slides.
I use McLube Sailkote. A can, that will last me a minimum of 4 - 6 years, cost me $28.00 last year, here in Toronto. This past year, I sprayed the track (very quickly) as the mast was down, lying on sawhorses. Then, I gave each sail slide a quick puff of the stuff. That was it for the 6 month season. My sail is still stiff but it climbs and drops , whooosh, like a stone. I use this product to spray every block, sheave and even the sliding cover over the companionway. I even sprayed it down my Marilon thru-hulls (when they were shut) to lubricate them. Sailkote is a dry lubricant. It works for me 100%. I might add that my sheave at the masthead seems to be OK but could be a touch stiff. I am also guilty, this year, of having a main halyard that sure needed a wash and was a bit stiff. Still, the sail whizzed down
Detergent truly does work but, hey, once a year application ?? Can’t beat that. Quick and clean and made for this exact purpose.
https://www.mclubemarine.com/sailkote/
Joe may be absolutely correct about your track alignment but, knowing this model, etc., I’d be shocked if there was any real problem with it. Your boat has, clearly, had too many good owners.
That said, I can think of oh-so-many reasons why your sail won’t come thundering down:
Main halyard: Too stiff and salt-caked (needs a good wash), maybe it’s passing through and rubbing on too many deck organizers or … ??, maybe it’s rubbing on the deck ?, maybe the sheave at the top of the mast needs a good spray of you-know-what Bottom line - take your time and examine EVERY single place where the halyard contacts something else before it hits your hand. You will find the enemy (friction). Eliminate it.
Your sail: The newer it is, the stiffer it likely is and the less that it wants to fall like a flimsy bedsheet.
Every block/sheave that the halyard contacts: If possible, throw them all into your dishwasher or just hand wash them with detergent. Then, spray 'em with … yup.
Your perfect bronze sail slides: Take a rag with some alcohol on it (in these COVID times, we all have that kicking around) and clean out all of the gunge that is in the sides that contact the sail track. In short, clean them all out. Then, spray them.
Your sail track on the mast: Hopefully, the mast will come down in the near future for a good check-up, etc. At that time, clean the daylights out if with alcohol then, just before it is stepped, spray the whole track.
Do all of that and I’ll bet you won’t have a problem.
Ernie A. in Toronto