I have a couple questions about Imperial Armor:

1. Is the heavy Imperial Armor the only kind that can be crafted by smithing?

2. Why wasn't the "medium" Imperial Armor available to be improved?

3. Does the Studded Imperial Armor count as a set when matched with the regular Imperial Light Armor? When asking for Medium Armor, it is the only seemingly unique piece.

4. Are there other pieces of Studded Imperial Armor?

5. If wielding a heavy shield, does it interfere with light armor perks?