Useless? Absolutely not Tim, in fact that pretty much confirms it. I suppose these can be grouped into the same category as any molding clip. I can get spring steel sheet from McMaster Carr, then its just a matter of annealing it, forming the parts and then heat treating it. If I'm lucky about 10% of them will be keepers! Heat treat with a torch instead of a controlled oven is a hit or miss operation.
But thanks for the pictures guys, I‘ll put these on the list of things that need doing, one day.
Denny Graham
Sandwich, IL