Greatwyrm
Been here a while...
I don't think Practiced Spellcaster is all that bad, but I think the fact that it needed to be made is the problem in the first place. I think if the spellcasting system was more unified, like in Midnight or Arcana Unearthed , things would be a little easier for the multiclassed spellcaster.
For example, if you had spellcaster levels stack in the first place (+1 for full casters like Wizards, +1/2 for others like Rangers), this would work better. If you had a Wiz 5/Clr 3, you'd have access to spells as a Wiz 5 and a Clr 3, but cast all your spells as if you were 8th level.
Of course, this doesn't really help the Ftr/Wiz. Oh well, back to the notepad...
For example, if you had spellcaster levels stack in the first place (+1 for full casters like Wizards, +1/2 for others like Rangers), this would work better. If you had a Wiz 5/Clr 3, you'd have access to spells as a Wiz 5 and a Clr 3, but cast all your spells as if you were 8th level.
Of course, this doesn't really help the Ftr/Wiz. Oh well, back to the notepad...