Thanks for the replies so far guys........Friz, do you have a brand name of the spray foam you used? I Imagine the foam itself doesn' t add much weight at all.........What did you use for lead balls? Muzzleloading rounds?
I' m just trying to figure weight gain, don' t want to OVER do it.

Not only from a recoil standpoint, this gun can definitely use it for better weight distribution.
Not just being a sissy!