If you use any volume, check out Butcher and Packer. I make several dozen pounds of sausage every year, after the hunting season. Been using this outfit for many years with complete satisfaction as the quality is always top notch.
Just today picked up 76# of pork shoulders to mix with the venison.
Have used Penzey's for small quantity spices and blends in the past, good stuff, but not particularly unique. Unlikely to buy from them again.
