Oh, and while I did not actually advocate boiling leaders Dickie boy,
I know at least one person who does it regularly with very fine nylon
for a specific purpose. He only fishes dry flies, and boiling his
tippet material makes it extremely limp and elastic, ( I don´t know
exactly how long he boils them, I would have to ask him), this
apparently allows a much better drag free presentation, and also
prevents breaks.

Nailing leaders to the wall, wont do any of that Dickie boy, and the
holes in the wall are unsightly to boot.

MC