Nicely done, Sir Patrick...I need to visit Sir James' tutorial as I need to sew my arming points on.
Ah, I'm glad it was helpful, but 'tis a bit out of date at this point. I now punch holes around the perimeter and sew it on directly. Also going to dye it to match the fabric, as I noticed the tan leather is very visible through the mail against a black arming coat.
Hoping to do it before DoK, so I'll post an updated tutorial if I get it done.