I'm running a 3 pawl engagement setup and when freewheeling or coasting, the ticking/buzzing sound is inconsistent like it's loud/quiet/loud/quiet and only over one part of the hub. Is something out of round? I'm a novice when it comes to wrenching on my bike, but two shops have had a go at the hub and can't figure it out either.

Any ideas?

Thanks in advance.