Thought I should do a follow-up on this, and report my findings.
Regrettably, I fear these aren’t as ideal as I had wished.
As you can see, several months of tightening and being under tension has deformed them. I’ve sewn a few of these with two g-hooks, but doubt that will really be any better. Just not sure it’s meant to withstand the rigours I’ve been subjecting it to.
And, amusingly enough, I managed to bust a ladder lock. Something I scrounged from Canadian army surplus, so this could well be 20 or more years old. Weak plastic to begin with, years of abuse on a piece of issued gear before I got a hold of it, my being too hard on it - who knows.