I'll try to post some details on pin to pin testing tomorrow. I'm mystified personally and am also amazed by the attention to technical detail on the site.
Even RennTech rarely gets this technical in the devil's details.
By the way I've also been mystified by my GE icemaker which defaults to crushed ice and requires a solenoid to route uncrushed ice to the door dispenser.
I'm impressed. Go Xoutpost!