I checked my stamina regen in all 4 pieces of a pure light armor and it was 13 per second or something close to that, then I checked my stamina regen in ursine 'light' armor and it was sitting at about 10 points per second, then I checked the stat in unmodifed Ursine armor and it was 8 or 9.
I thought it'd give me a slight stamina regen boost, but soon after I noticed that something was not quite right. I myself used the levity enchantment on my Ursine gear.
It is bugged in a sense that enchantments that modify your armor class don't properly apply the stamina regen associated with that class of armor.
