I don't think that we're all on the same page yet.
I take it that you're trapping from your vehicle, each time that you park and slide down over the creek bank, you'd want at least 2 traps to check. On the bigger streams, 2 sets on each side would be a good idea.
You're working with a 24 hour check, I assume. 8 traps in one little area, that's not realistic. You'd be better off to take those other 4 or 6 traps, on down the line, and set up 2 or 3 more creeks.
One thing that I read above that doesn't make sense to me, using foot traps, a good mink set is also a good coon set. My theory is, you make the set and catch them as they come along.