Splicing high-tech double braid.

[jeffh]

Kristian is right about the Flight Line, but since the oversized cover is short lived polypro, it's just as effective to strip the cover and lock brummel and go core only, with this configuartion of line.

When inserting the core into itself this entry will be well inside the standing part of the cover, as the splice is drawn up. I've found that a small fid (or large sail needle) is helpful in holding the two marks together as your drawing up the splice. Be sure to massage the slack out of the eye as you're drawing up the splice.
You should have to snap against a belay until the very end with endura braid as its cover has some give.

In addition to Brion's Books (both the Apprentice and the field guide to braided rope splices) take a look at the English Braids website. They present some good photo sequences in their Splicing Directions. Their cordage is a bit more "Marlow Oriented" with the techniques differing somewhat however the principles are still the same. Their core to core splice does employ a cordage with an "intermediate cover" which you don't have to concern yourself with and they cheat a bit by lopping off a bit of the core which makes a little more room in their extra tight tweedy cover.
good luck
jeff