Upgrade item from normal to uber

Is there anyone who did upgrade your item from normal to uber? I guess no.

Since the success chance decrease with number of upgrade, at the time the item reach uber level, it must be +15! If the +(number) is reset after the item reach new level, that will encourage people to use blacksmith.

 

Detail:

 

Now: normal -> normal (+1) -> normal (+2) -> enchanted (+3) -> enchanted (+4) -> enchanted (+5) -> rare (+6) -> …

 

Recommend: normal -> normal (+1) -> normal (+2) -> enchanted -> enchanted (+1) -> enchanted (+2) -> rare -> …

Yeah, you must be on the nuts to upgrade a normal item to uber…