Lol well played, but I'm not sure i follow.... inferior product? Are you saying 3 strand wire core is inferior? I run the premade braided ones and i don't use them very often, on most stems I'm coming down making a couple cuts so setting a rope lanyard isn't that hard but Jerry even talks about making Manila wire core for flip lines in the fundamentals. Can't be all that bad i figured, i have a 3 strand non wire that i use for construction positioning and it is super easy to grab. With the helical hitch i have for adjustments I'm not sure what you could really do to improve it, but the lanyard sees far more abuse than a tree one would. The one problem i have with the nice premade braided ones is that they are hard to inspect.
John, I'm sure you've noticed a trend that you could save a bunch of money and still get to try out everything you want to if you learn to splice stuff. Honestly i find it as important as knowing how to tie knots. It's simply a part of the trade.