This is a reminder to closely inspect the lock type you get, and especially the depth, shape and finish of the groove. Not recently, but I've see grooves not deep enough (lock cannot expand fully), or not wide enough for both locks (one is on the edge), and "new" locks that were obviously different diameters in their relaxed state, or apparently had been installed and removed (spiraled, so that the ends were overlapping, but not quite touching).

Good shops will never do that? If they haven't had a bad one in 10 years, are they really going to examine 48 small areas (8 × 4 + 16) without billing you?

Old Harley mechanic's rule: if the lock ("L" shaped cross-section in those days) is at all distorted, or does not "SNAP" completely on to the pin groove, throw it away.

Any of these could be a $$ in the making.