Considering jobs will prohibit the use of skills from another class.. Materia

[Coglin]

Well I wouldn't say it removes them (if you are referring to my post on auto-skills) .

It removes some of there value, in my opinion. We have a system that gives you access to these abilities, its called the armory system. You offer to add features that take away from this.
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it generally never killed classes in other titles, I fail to see how it would here.

Other titles? How many MMOs do you know that have this feature? How many of them have the armory feature as a main characteristic of the game, thus in my opinion, proving it may kill classes.

, for example, Shell gives you (this is a random number) 10% protection for 5 mins, Auto-Shell would give you 5% protection for 30 seconds. I'm just pulling random numbers here, have no interest in pretending I know how to balance a game, but that was just my opinion.

i guess thats kind of my point, I think it screws with the balance of the armory system. A system I personally, am very fond of.