Couple years back I was looking at gun that Elephant & Castle had listed on the internet....this "English trained gunsmith" on the phone told me he could measure the depth of the pits....I guess he figured that because I was calling from Tennessee that his English accent would hypnotize me into believing his line of bull.

Pits are like a cavity in a tooth...lining them with lead, plastic fowling or powder soot ain't going to make them go away or stop growing.