I see where you are coming from and agree for the most part. I do have one last question though.
So, if someone did a magical identify or even detect magic it would then register as a +20 magic shield as well as having a +20 hardness and an extra 100 HP?
My next question is: Doesn't that violate the rule
In addition to an enhancement bonus, armor may have special abilities . Special abilities usually count as additional bonuses for determining the market value of an item, but do not improve AC. A suit of armor cannot have an effective bonus (enhancement plus special ability bonus equivalents, including those from character abilities and spells) higher than +10. A suit of armor with a special ability must also have at least a +1 enhancement bonus.
One of my players is making a shield throwing Brawler. Since he is using his shield as both a weapon and a shield he says that for magicing it he gets 2 pools of enhancement. One as a shield and one as a weapon.
My question is: is this correct?