I agree with te0x on that one... the least limitations make it the most convenient...
Why limit Aspd potions? They weight a lot and unless you get dispelled, you won't need a second one, so why limit, when it's rather senseless to even bring a second one?
No Potions goes for all Jobs, for Chemists as well.
I don't really know on Greens/Panceas, as I haven't done enough pvp to build an opinon on those.
Converters: none or unlimited. Except for Casters, most ppl will rely on race-dependent attacks anyway. If Casters are broken when they changed your element is another thing i can't judge (yet). [just a little question: If you get converted and you switch to an element armor, do you have the converted or the armor element?]
