jao,
I wouldn't mind being "that guy" to help or bounce ideas off of, etc. I grew up close to where you live and also lived in that area about 15 yrs ago. I now live out by "the lake". Let me start this off by giving you a couple of ideas.
1. Click on one of the live feeds and listen to it. Are you hearing similar traffic on the feed vs. your scanner? I've found that's there is a two second delay, as well as TGs on the feed that I don't have, but I do hear some of the ones I do have on the feed.
2. Check out
ScanFan - The Coolest Scanner Site Anywhere Essentially a website similar to this for MN scanning specifically.
MM