Hi all,
Ah, 3-strand. Nice to know that you guys still have a use for it, even with all those neon braided super-ropes you use. That 50-year-old splice was finished with a palm-and-needle whipping, and yeah, it is labor-intensive. But I've found that a couple of Double Constrictors are nearly as permanent, at least if the splice is well-faired and -tucked, so that the ends don't want to pull out to begin with.
I find melted gobs to be sharp, toxic, and ugly, and I've seen them pull out. Also, it is so very easy to melt the standing part strands, too, which isn't good for the rope.
As for the taper Norm shows, here's one more name: "Frisco taper".It is tidy, and though I've done no tests with it, I've heard that the asymmetrical tucks produce lower break numbers.
For what it's worth, on some tests we did with nylon, the rope broke a few percentage points weaker when the splices were tapered (fully tapered, with each strand having the same number of tucks). Only with nylon, and I don't know why.
I usually don't taper, unless the client asks for it. But I always finish with a backed tuck (with the lay), as this seems to lay down a bit smoother.
Fair leads,
Brion Toss