One thing to note for those of you running custom 93 octane tunes, 93 is pretty hard to come by around the Galena area. My wife's folks live out there, so we go every few months or so. I have a 93 octane protune so I fill up here before we leave and then again at Winnebago (on Rt. 20).
Also, not sure of the route you are taking but Elizabeth Scales Mound Road has some really nice curves and elevation changes.