Re: Bent pins
I worked testing big iron Sperry 1100/80s. The card were close to 8" x 11" and had 4 - 60 pin connectors that plugged into the back panel full of wire wrap pins.
So I was helping some new hires debug a problem and they had found a bent pin on the back panel. So I told them if the ever had a problem putting in a card, they may have just bent a pin.
So one of them grabbed the card puller and pulled out a different card and shined his flashlight in the slot. And he says "yes, your right".