I've never looked for or caught a Tiger, but the last time I went through as a traveler, the Driftless Angler in Viroqua hooked me up with locations and flies that caught brookes and browns.
Edit- Just realized [U]which[U] Len Harris is posting above me. I'd imagine a pm from that gentleman is pure gold. I have no business posting anything beyond his insight to the area. But, for the record, the Driftless Angler folks were very helpful.