Dave; I changed over to NER VPC halyards a number of years ago to lose the abundant stretch of StaSet. That stretch gets played out across the deck, up the mast, down the mast to a reefed sail and it not good for trim or the sail, it pumps your sail set. On my boat it was a minimum of 6” to 8” stretch, loading and unloading my sail, not good. As you know, the VPC gives you a great low stretch halyard (with Polyester cover) but it also puts maximum loads on your clutches that I assume they never saw before and they have a few years of wear on them. In my second or third year of VPC I found that the main halyard started slipping in the clutch. A spinlock rebuild kit from APS fixed the problem (jaw cam and base plate) and got the job done. Suggest trying that before you give up on your current halyard. This spring I will be applying line coating to the clutching areas to better shape the line being clutched. I think that will help line clutch grip as well.