I have two with the lock. A Model 60 3" and a 686 Plus. Both .357's . They both have been shot a lot.
Never had a problem.
I would prefer them not to have the lock, but I do not loose any sleep over it.
Like someone else said, they still are better than any Ruger. (at least when it comes to the trigger)
Note: I shoot only midrange loads in the Model 60.
Most of the time when it's reported that one locked up while shooting it's been either a scandium or aluminum framed gun shooting a hard kicking round.
