I get resonance from about 54-56mph so I try to stay above or below that by 10mph anyway, works out fine. I do 65-70 indicated with my tires is actually about 70-75mph but I used to jsut do 85 like everyone else in this state, but the tire and wind noise started to wear on me after a few weeks, so i leave 5 minutes earilier and its SUCH a better drive goin slower. i cant see out my back window anyway with my 285 on the relocation adapter and people have 2 lanes to pass me on the left as it is so... people deal with it. im no slower then a big rig and i still find myself passing people doing legit 60-65 in the right lane.