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Ya i did before i had to retire the 416 because of a split custom upper deck. It felt pretty promising but i could not wait for it to be repaired so had to go back to the old car. The old car tweaked way to ez which ruined many of my runs. The main thing i had to overcome with the 416 on foam was the weight in the rear. The excess weight in the rear of the car made the car over rotate entry/mid corner...it was a handful! I was able to move my esc forward about 6mm and installed a larger spur to move the motor forward as well. This made the car very balanced and above all, much easier to drive! I will post my foam setup along with the rubber one i have been workin on as soon as i can!