+1 for balancing.....I put almost all of my tires, buggy, truggy, sc, 1/8 and 1/10, on a balancer after run-in and I will say that my AKA's are better than any others but they still need a little balancing most times. Key is to add as little weight as possible. My buddies at the track thought I was stupid when I started doing it and gave me all kinds of crap in the pits till they saw my 1/8 buggy and truggy run. Changed their mind real quick. Now they ask me to balance their wheels.

Think of how little weight they add to full size wheels to get them in balance and yet without that little bit of added weight the front end of your car has vibration. Now think if your car was running 300+ mph instead of 60 and think about how bad that vibration would be. Thats basically what you have with an 1/8 buggy thats running 40+ mph. Really its more profound than that because the size of the wheel isn't proportionate to that of a full size car.

Anyway....you get the picture......