Fantastic information Ard,
I've since ordered a couple spools of braided mono in 30# and 50#. In the meantime I picked up a package of the ready made loops that slip over the end of the fly line, thinking I can go ahead and make a loop in the open end.
I just made one but had some difficulty in getting the material to pull back into itself, it finally pulled inside but I ended up trashing my threader in the process. I think the wire on the threader may have been too large for the material.
Any other tips would be appreciated.