Pleas do not go to fast in your implementation of this.

Raising the cap from 60 to 80? not needed
Allowing two crafts to 100, yes this would be nice
Allowing more then two or all crafts to 100? no this is to much and should not be done.
The main thing though, something you do not have listed, is to make craft just alittle easier, the fail rate and/or skill gain rate is still bad.