See if the seller will allow you test fire it first- a Grade 2 20 will have the 2 & 1/2" shorter chambers, so RST shells are a must-I'd want to test fire this gun with the trigger in both L and R settings, with at least a full box of shells- Also, FYI- the HOT equipped Smith guns will always have a non-automatic safety. You are right, the best LC Smith gunsmith in America that I know of, will NOT work on HOT triggers- Buck Hamlin in MO.

"The field is the touchstone of the man"..