Yep smuller81, pays to use the grommets. They prevent cracking of the lugs as zaintlouis pointed out, and they also insulate the servo workings from the incredible vibration set up by the nitro motor. This vibration can over time cause faults in the servos and the rubber mounts go a long way to limiting such damage.
What has everyone been up to ?? Had a good day playing at the track on Saturday. Getting truggy working better each time I go and play. Think I'm finally getting the hang of racing these things and keeping them on the track