Some more progress and a quest for opinions
The first plastic casting trimmed and next to the plaster cast: These pics look worse (blurry) here than they do on my pc for some reason.
Now my question. I have had a plan to cut the back with a couple ideas to do the snaps and overlapping. I still need to play with those ideas if I end up cutting them. The thing is, my wife can slip the thing on and off with no problem. I can almost get it on and my foot is a 12. I could leave it solid and attach the snaps for looks after it's wrapped with leather. There would be a seam in the leather in the back.
Although my original plan might also aid in slight adjustments to size if someone had a calf that was a little tight. What do ya think?
Speaking of adjustments, if someone was short and the guards are a little out of proportion, they could be trimmed down a little on the top.