You will have to install it and see.
The used Hand you got looks alright...but, until it is installed, there is no real way to tell how it will improve or worsen or break-even, as far as it's effecting the Timing of your particular Revolver.
The used Hand you got looks alright...but, until it is installed, there is no real way to tell how it will improve or worsen or break-even, as far as it's effecting the Timing of your particular Revolver.