Moncal, what oz weight are you using for the vest? You went pigskin garment white, so I am assuming 1 1/2-2 oz. That is approximately the same as the sheepskin leather that I got. Do you find that washing the leather makes it firmer? I wish I could "feel" your vest to get an idea. I am debating in my head, whether to see if I could just wash a sheepskin leather and see if it gets firmer so as to not stretch so much when installing the hose connectors et. al.
I think your skirt, holster, and helmet brim calculations are wrong in amount. You might want to re-add. I have 18 sq feet for the skirt alone. Are you talking about the strips for the holster? only? Cause, the holster has three layers and I think two of the layers are petite tooling calf, the other is the skirt material. Geez, it's been years.