Lucky for me, I got motivated to go to Sig for one of their contests.
Mrs. Sig had the modelers tour her entire complex - except the sawing building, which was classified Top Secret.
I liked the 150-year-old printing presses used as die-cutting presses. They could rip through a stack of blanks at 30 hits per minute, which beats the hell out of laser-cutter or plastic printer.
Also the wire-bending tools that shaped landing gears powered by a hydraulic cylinder.
Hazel said that the key element in balsa-buying is to permanently employ a trusted dedicated balsa buyer in Equador. Otherwise, you just get the crap that Sig won't buy.