Hey C4c:
I can’t comment on your idea because I never mixed supplements like that for my dogs and I totally understand the need for simplicity.
When I used to board my horses I had to make adding supplements to my horses meals very simple, or they would not have gotten them. I used to mix daily supplements in small plastic bags so all the person had to do was dump the bag. I doubt the person feeding even took the time to mix it into their feed, even though I hung a mixing spoon next to their stall doors. lol
