Great Guide.

One thing that I will do to prevent "blow-ups" (ie the heatshrink pulling off the end of the sleeving), especially if you cannot get perfect tight fits with your heatshrink:

At the end of the sleeving, I'll add a little collar of electrical tape--only about 0.5cm in width, and only 2 times around the sleeving. The heatshrink goes over this collar--when shrunk down it will grab it, and not slip off.

This really isn't necessary for cables not under any particular movement stress--like the individual wires depicted above.

But if you are doing multiple wires within the sleeving, like the classical 4-wire molex cables, that are often jostled or moved, generally a collar of some sort is necessary.