the way i look at it is if i dont specify that will increase my chances of finding someone with a tracker that offers what i am looking for because not everyone is gonna have access to the same tracker that i have specified making my trade offer useless to someone that would like to trade for an audionews invite. yes someone could offer a similar invite to a tracker to one i could have specified but not everyone thinks that way and it wont increase my chances more than not specifying a tracker.