It's pretty widely held, at least among S & W enthusiasts, that the Model 39 fits the hand better than any other pistol. If you shoot it you will probably remove $150 in value, but who cares. You don't plan on selling it, hopefully you've made other provisions for the benefit of your eventual heirs, and the gun was made to be used.
Shoot the living heck out of it. Enjoy it, life's too short.
I would love a photo or two. Let us know how it goes.