Interesting, I have one car that's pushing 5 years on super 90 w/ not a droop/drop etc..

I've prob. done 20+ cars w/ super 90... Works great on SEC headliners too

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
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Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta