If you have TW P!@#$%^&* at 10k exp. It just means the first person who gets it, gets to monopolize it for a short period of time since that person probably played abit more than the usual people. If its at 15k, that means whoever gets is practically the only person who has it for a longer period of time since it takes a lot of time to go from 10k to 15k exp. With that said, its the matter if you want a 5+ people using TW P!@#$%^&* and fighting each other/being together against you or would you prefer 1-2 people using it together against you.