Hey Tom, that is correct, on,the first part of your question. One you pull out the wire cut it to the length you need to match the negative coming from the other pack, pretty simple to do and save a lot 12 - 20 grams per pack.

Concerning the orientation of the arming plug, not sure if it matters, Rust Dose, I beleive had his orientation that way so I just followed suit, figure if it ain't broke