Using an item with a use of 'Remove Curse' on a withered subject will give the caster a 150xp penalty.
Casting the spell 'Remove Curse' as a cleric/whatever will only give a 75xp penalty. So I am told, can't confirm on my own.
I'm not sure if this intended or if it's a result of one or the other using an older script.
Intended - there are various different levels of alleviation of the curse. Items cost more co but they cure more withering too.
I thought the amount of withering removed was based upon the caster level of the remove curse spell, whether item or spell?
It's actually not intended and should be fixed.