I went for a flight today. Practiced in Atti mode (No positioning) with a little wind. Landed on my dirt driveway. It's a nice hot sunny day here so the driveway is dry (sandy/dusty). Went to put the gimbal clamp on and the gimbal was a little bit stuck on a tilt. I put it back in position carefully. It wasn't so stuck that it would brake moving it. Went to put the gimbal clamp on again and heard a gritty sound. I moved the camera up and down and heard it again. I kept doing it and blowing trying to get it out and it got a little better. Any suggestions would be appreciated.