Thanks Zeph, I know to ignore the trolls but sometimes it's fun to put them in their place. Anyway.

A lot of this concept you are speaking of is already in place, however, it's not intense enough. Example, at 100 skill level, it's not like it's only a 10% chance to make supreme. It's much higher, and it shouldn't be. Maybe at 100, 20% chance to make supreme, 99, 15% chance, 98, 10% chance. 95, 2% chance would be a great system.

Repairing items is suppose to restore them, but degrade them a bit. So you couldn't repair to Pristine, but maybe to very good condition. Also, it would lower the durability from very high to medium or whatever. Eventually an item couldn't repair anymore and it would break.