the difference between the 2.0 and 3.0 is basically model memory the 2.0 only does 2 cars but i think the 3.0 can do up to 5 i have the dx3s on my slash that has a vxl and my tt01 which also has a vxl before i got this controller my slash did the same thing it cogged really really bad but now no issue at all the dx3s is a little more then your budget but the 2.0 is nice aswell and will take care of your cogging issue.