I use that because (1) the block always seems to wind up in a puddle and (2) they can't tear it up.
You could always sprinkle a little salt on the feed if you don't think they're getting enough (go easy).
Yesterday turned out to be a rather pleasant day. Cloudy, high 50's, good day to shoot. I didn't do too bad, for not shooting for a couple months. My shoulder feels it this morning.
You all have a good day, it's time to work.