"You may be referring to a damage suit that claimed the set screw retention was inadequate. All here would consider that mystery meat.
Welcome to the madness."
Ah... Lawyers were involved --> keep an eye on your equipment, tighten things now and again, pragmatic ownership.
Speaking of Greene, if I attached the picture correctly, the end cover with the Serial and chassis is green, the head seems to have 2 forms of tan, may have been replaced at some point? Not sure if there is any way outside of the serial to understand more.
