It feels almost the same in weight as the original, but on the scale it is a bit heavier.
Original Pulce 40: 21 ounces
My new resin copy: 22 ounces
It doesn't feel heavy walking around my apartment with it. Also if I use the stiffer material with the aluminum powder, the weight will change a bit. I think the dark brown material is a bit more dense than the firmer stuff. It holds shape well and also has a slight give to it, like a superball but not so rubbery. You could drop it from 10 feet and most likely nothing will break or crack (but you never know). If you grab the barrel and push you can get about 1/4 inch of bend, but it doesn't sag or anything. I think that in the end I may get a material that is just a bit more firm, but not the brittle stuff.
As for selling some copies, I think I will post an interest thread in the Boba Fett Costume section