Keeping in mind that most of the original flintlock Kentuckies we see we’re converted to percussion the reconverted back to flint, and so what we see on the table or in the books may not reflect their original form........
Unbridled pan or frizzen export locks were more prevalent “early” than later and we’re less expensive. To me it gives an early feel to a rifle or fowling piece that is intended to represent 1770s or earlier. To me it does not belong on a gun with double set triggers. A refined rifle should have a pan-bridled lock.
Regarding wear and reliability, it’s unlikely any of us will live and shoot long enough to see a difference. So it’s a matter of choice to give a certain feel to a build. Also a fowling piece or smooth rifle may be more likely to use a lock without a frizzen or pan bridle.
As a disclaimer on the historical side I’m talking export locks. Plenty of fine Germanic rifles, highly decorated, featured locks without a frizzen bridle.
img upload