does anyone feed these sausages to their snakes? I am considering switching fro mice to these to feed my Gopher snakes. Are they nutritionally balanced? How close are they to the real thing? I was thinking it would be a lot better to store these in the freezer than mice. I know T-Rex makes them, but does any other company have them? Where is the best place to get them? Any pros or cons to this processed food? Thanks.