I had a Storm and now I have a Tour and I have the same issue with both. My Plantronics 855 cuts out a lot while outside mowing. It seems to be fine inside.
The Tour is better than the storm but not great.
Any ideas? Anyone out there using a stereo BT headset to listen to music while mowing grass?
I have the same headset as you, and was mowing the lawn just today as a matter of fact. I deal with the same issue with my pearl. You'll just have to find a good spot on your body that allows the phone to communicate with the headset without your body getting in the way. Unfortunately, it acts as a conductor and can cause interference which usually is irrelevant indoors, since the signal can bounce off walls.