A friend of mine works for Hoosier Tire (just south of South Bend, Indiana). He's on a team of guys that travels the country and changes the tires for many of the racing teams in certain racing leagues.

He says it's pretty dirty and tiring. (pun intended).

Oh, and the job depends on speed and accuracy (so Mike will do a GREAT job "messing that up")

I don't have any contact info for you but I thought I'd throw you a bone!