Mesa Boogie Repair Center in Chicago?

[fome]

I've always wanted to get my Mark III serviced by a licensed Mesa Boogie repair center, but I couldn't find listings anywhere, even on their website. The website seemed to only list dealers. My local amp tech doesn't seem very knowledgable, so I want some place with Mesa Boogie expertise. Does anyone know of a repair center in the Chicago area? Or how I could go about finding one?

 

[seajay]

http://mesaboogie.com/US/Dealers/dealers___support.htm

Click authorized repair stations on the right. I don't have any experience with any of the ones listed for Illinois.