Shrug.
I still like it better for spell level and caster level to be OOC ideas. I don't think it's necessary for it to be something that in-game characters can figure out, any more than an in-game fighter should call himself a fighter of the third circle because he can make 3 attacks. That is, after all, discernable by characters in the game world as well (he can kill 3 creatures in six seconds without using multiple weapons or striking multiple creatures with one blow [Cleave]).
But like I said before, I've got nothing against the other way, it just isn't my piece of pie.
I still like it better for spell level and caster level to be OOC ideas. I don't think it's necessary for it to be something that in-game characters can figure out, any more than an in-game fighter should call himself a fighter of the third circle because he can make 3 attacks. That is, after all, discernable by characters in the game world as well (he can kill 3 creatures in six seconds without using multiple weapons or striking multiple creatures with one blow [Cleave]).
But like I said before, I've got nothing against the other way, it just isn't my piece of pie.