Many test prints yielded a new & improved cord lock.  The triangle points ended up being really fragile.  It might have to be made of PLA.  With these new cord locks, there's a growing case for a 2nd one to adjust the heel strap.  It probably wouldn't chafe.  The heel strap just hasn't required enough adjustment.

Fake suede ended up not being as durable as fake leather.

Tried a single bead of glue.

The last of the fake suede went on.