Well, they arrived. Thank you Strapworks for decent customer service and quick shipping. Of course, it doesn’t hurt that they are only about 500 miles away in Oregon.
So, I had in my mind that the aluminum would be molded similarly to a nylon or polypropylene quick release, and the “spring” of the tab would be a potential fatigue and failure point. The buckle actually has a separate set of moving parts riveted in with a spring or springs between them.
I have some concerns about gunk/mud/ice long term, but I’m going to give them a shot. They did lock nicely on the polypropylene strap that was also sent.
The listing says they are anodized, they appear to be more of a powder-coat process, and some of it was flaking off. Ultimately, I don’t really care, and probably should have ordered the raw aluminum.
If anyone is interested, I’ll post a pic after I get the sewing machine cranked up to attach the straps.