Please be careful when sharing items or accounts!
A Tarp is a higher stage of human evolution.With the body of woman, but the mind of a man... it is nothing short of sheer utter perfection.
so you want something that will prevent the char using it to not any exp but to allow even share and the other party members to gain that 50% ( if it's a 2 person party)like to be able to leech low lvls for ever on that char?!?!
Make 2 items, one for job and one for base exp's.