So as an aging fellow, I judge a good sausage not just on the immediate taste, but how long I "taste" it afterward.
I'm not sure what does it, but there are some meat markets that add something that makes me burp for an hour straight afterward. Yuck.
L&M in GF does that. I can't have any of their products without popping a couple Tums right after.
Then again, I make my own venison sausage every year and don't have that issue.