Just make everyone vanilla and then make them earn things on a daily basis through a vote mechanic if you are worried about claiming. So each day phase someone can be voted to earn something it maybe to ask they'd a question like how many mafia there are, a BP or save, a one time investigation. That way people have to make reads more and no one has to claim anything the game mod chooses what can be earned each day phase and the whole group of people vote on who gets the power role. Mafia still gets their kill each night. You can change how the information is given based upon who gets voted to earn the power.
"If you have a problem, if no one else can help, and if you can find them....maybe you can hire The Tap A-Team