Just trim your body so it will fit well all around the buggy. Trimming along the lines is a good starting point.
One spot that is very crucial to check is the front steering range and suspension. Make sure the steering ackerman arm does not hit the body at full throw in both directions. Also compress the suspension through the full range to make sure it does not bind or rub.
Trim a little extra right above the front upper arms - when the suspension is fully compressed, this part of the body is very prone to cracking due to the angle of the upper arms pushing on the body.
I also like to take a little extra off the very back of the body. Just a reasonable gap so it does not rub on the rear shock tower and rub off that nice black anodizing
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