Slipping clutch. Dyneema etc

[Upnorth]

We race a cruising boat. Last season the 25 year old barton clutches were slipping so I lazily replaced them so as to not drill new holes.

Well guess what, the main halyard still slips!

Its 8mm dyneema. We have tried chopping a bit off the halyard to see if its just a compressed bit of rope but no different.

Im not going to put better clutches on now having just renewed them.

So the next plan is 10mm dyneema. However I just saw some "cruising dyneema" in the chandlers that looks less slippery? Should we try this?

Any ideas before I order a new halyard?

I know you say that you don't want to put in new clutches but...we have these http://www.cousin-trestec.com/en/produit/en-constrictor/ on the main and genoa hlayard. They have good grip and treat the halyard very kindly. Our old cluches were ripping the covers very quickly, so the cost of the clutch has been paid for by the extended life of the halyard.
Downsides - remarkably easy to let off by accident. Although once you know, it happens rarely. Usually someone in the wrong place snagging the release line.
Only other issue is sizing. The spec on rope grip, and what line would fit each model, for us, was not correct. So if you go down this route try your line size in the constrictor before you fit on the boat to check it goes through textile sleeve, and snuggs down to grip it.

 

[roblpm]

I know you say that you don't want to put in new clutches but...we have these http://www.cousin-trestec.com/en/produit/en-constrictor/ on the main and genoa hlayard. They have good grip and treat the halyard very kindly. Our old cluches were ripping the covers very quickly, so the cost of the clutch has been paid for by the extended life of the halyard.
Downsides - remarkably easy to let off by accident. Although once you know, it happens rarely. Usually someone in the wrong place snagging the release line.
Only other issue is sizing. The spec on rope grip, and what line would fit each model, for us, was not correct. So if you go down this route try your line size in the constrictor before you fit on the boat to check it goes through textile sleeve, and snuggs down to grip it.

Looks interesting. And i am a sucker for a new gadget! You obviously have to be French to use them though. All the youtube videos in French!

I don't quite get how they are mounted. I am wondering if I could mount one each side further forward than the bank of clutches somehow.

 

[Upnorth]

Looks interesting. And i am a sucker for a new gadget! You obviously have to be French to use them though. All the youtube videos in French!

I don't quite get how they are mounted. I am wondering if I could mount one each side further forward than the bank of clutches somehow.

Easy to mount, just two bolt holes, countersunk heads required. If you do a google search for constrictor clutch, you get a lot of results in english, and the image link shows lots of views of the item along with examples of usage. The YachtingWorld gear review that comes up as one of the search items mentions initial slip as a problem - they are correct a bit. We don't rely entirely on the 'bungee' but slide the constrictor sleeve along the line by hand before releasing the winch.
https://www.google.co.uk/?gws_rd=ssl#q=constrictor+clutch