I do this also with the bacon. It works great.
However, I will say that grinding burger is my LEAST favorite part of processing deer meat. It is just a pain in the ass all around. (I use an old manual grinder, so that may be why it is such a PITA).
Cheap (fatty) bacon works best for me also. My family would prefer deer over beef. I guess if you butcher your own long enough you learn what works best.