Increasing double braid diameter

[alberto]

Hi to all.
Sorry for my english, I'm italian and what you're reading is my very best :-(

I'm trying to modify the halyards of a boat as to loose wait on the mast.

I've seen a great solution on a french boat I really don't know how to make.
The mainsail halyard was a vectran core with a polyester cover. The cover has been removed for the most of the lenght (I know to splice this) but, due to lower diameter of the halyard, even with the cover in place, the stopper didn't worked properly and, sometimes, it slipped a bit if under load. To solve this, over the original cover, has been 'spliced' another cover. To be sure to be understandable the result is: a vectran core, a polyester cover, another cover on it so, a core and two covers.
The result was perfect to use (and olso to see).. there should be any 'trick' to bury the additional cover. in the place where the two covers were locking together there was an additional whipping but seemed not really needed as the spare halyard didn't have the whipping.

I tried to find this sort of splice on google but without any result... maybe because I neither know the name of such a work.
Anyone can help me?
(As my english is poor.. pictures or other 'stupid proof things' are very welcome)

Thanks.
Alberto.-


Anyone knows how to get that result?
Any picture or documets would be appreciated (as my english is poor..)

Thanks a lot.
Alberto.-