I'm using the 30g version on the B-Max2 MR. It's easier to use than normal weights because it's easy to add. With my testing so far I find that the car is a little bit more planted on the rear.
I'll try the 60g version soon (always have it with me), but I guess it's too heavy to use it in the rear of the car.
Don't know about the use in the RS, but I guess the car will be popping wheelies on command, lol
