Yeah. I'm not happy with what I presented - not entirely. The mix-n-matching thing SEEMS good at first, but upon actual application, it's messy. I've even tried multiple times to tweak it, and I don't like it. Basically, I was thinking of something more simple in the end and breaking it out similar to 5e. I still think the stats need tweaking though, to fit more with how these armor types actually work... something like this:

Leather = +1 AC, No Dex Max, Dis on Stealth
Studded = +2 AC, No Dex Max, Dis on Stealth
Padded = +2 AC, Dex Max +3, Dis on Acrobatics

Hide Armor - +2 AC, No Dex Max, No Dis at all (I honestly think Hide should be light armor, but whatever)
Chain Shirt - +3 AC, Dex Max +3, Dis on Stealth
Cuirass - +3 AC, Dex Max +2, Dis on Acrobatics
Half Plate - +4 AC, Dex Max +1, Dis on Acrobatics and Stealth
Scale Armor - +5 AC, Dex Max +1. Dis on Acrobatics and Stealth

Ring Mail - +6 AC, Dex Max 0, Dis on Acrobatics and Athletics (except Shove), requires Str 13
Chain Mail - +7 AC, Dex Max 0, Dis on Stealth, requires Str 14
Splint Armor - +7 AC, Dex Max 0, Dis on Acrobatics and Athletics (except Shove), requires Str 14
Plate Armor - +8 AC, Dex Max 0, Dis on Acrobatics, Stealth, Perception and Athletics (except Shove), requires Str 15

Small Shield - +1 to AC
Medium Shield - +2 to AC
Large Shield - +3 to AC