Then don't allow converters and allow mage scrolls instead. Converters I think are worse than scrolls as the converters are very obvious changes to armor type. I mean really to me it destroys some of the thought process in pvp 1vs1 *no more element armor guesses* like in ToH when allowing the converters.
IF the only scroll you worry about is the Frost Diver scroll then let's just ban that one instead.