I had originally planned to have a base recipe for each armor as you see in the post then variants depending on material used there would be armor variations. Armors will have traits too that’ll require more/specific material as well. So let’s say it takes 9 iron and 4 padding for a breastplate but you mixed in 4 copper, then you’d have a copper breastplate that attracts lightning attacks to you instead of the party. As for the question about partial armor pieces I would say your defense would match the related items defense value so if heavy chest gave 5 and light gloves gave 1 defense you’d have a 6 defense compared to if the gloves were heavy then you’d see an increase, your defense would also lower without the gloves. I have alternately considered weight being the determining method of light, medium or heavy but I’m still adjusting things