My personal preference is a simple Y-shaped pigtail with locked eye splices at all three ends. The middle eye attaches to the jib clew with an eye-hitch, and the ends eye-hitch to blocks. This is the cleanest and most secure attachment, with nothing to snag on the mast when tacking.
One improvement is to splice the ends directly to tie-lite blocks. That leaves even less weight on the jib clew, and the blocks don't dent or scratch whatever they bang into.
The only drawback is that you cannot remove the jib without unreeving the sheets.
I currently make my soft shackles with a self-closing eye in a manner similar to Allen Edwards' "improved soft shackle). I have found, however, that people unfamiliar with it invariably put the knob knot through the wrong loop and invert the terminal eye. That makes it rather insecure. Fixed eyes are more foolproof.
I put full locked brummels at both ends of the bury (Edwards only half-locks his and I use a different knot for the knob. Most people tie a "knife lanyard knot" (ABoK 787) and unfortunately refer to it as a "diamond knot" (which is actually a different knot - see ABoK 781). I don't like the knife lanyard knot for this purpose for two reasons. 1) It is a lanyard knot (the ends exit the top of the knot) rather than a button knot (where the ends exit the bottom). A button knot is more esthetically pleasing. 2) The knife lanyard knot can slide under load if not pulled up tight enough. I use a 2-strand 8-part button knot (ABoK 980) which I feel is both more attractive and more secure. It tends to get tighter under load.
If memory serves, I started that particular pigtail by putting eye splices in two pieces of line. Then I lock brummeled them together. Next, I made the slipped eye in one end. Then I lock brummeled the two lines together again. Finally, I tied the button knot and cut off the ends.
If you'd like to see some of the other pigtails and soft shackles I make, take a look at
www.nautiknots.com.I hope that helps,
Eric