I have a couple of older 870s and 1100s with fixed full chokes that I would like to have drilled and taped for the Rem chokes. Has anyone had this done? Does it matter what fixed choke the donor barrel has. What about cutting the barrel shorter and then having the chokes put in? I have heard of this being done, but have never heard any details. I figure since the 870 & 1100 will never be great collector items, it would be better than buying new barrels for them, and maybe a LITTLE cheaper.