The L-100 was never a fantastic product however it was workable and looks great. I found a NOS (new old stock) L-100 for my Avion C-11 and have been happy with the way it has worked. There are some critical screws that should be treated with loctite before assembly as they will cause the lock to fail if they back out.
L-100s are getting hard to find but do show up occasionally on eBay and elsewhere. Good luck in your search.
To learn to see below the surface, you must adjust your altitude