I have not. I've had mine since December 2017 ... and it even held zero for about 5 months, while I had it on one specific rifle. So far, the Radius is functionally equivalent to the RAPTAR, which cost 8 times as much!
I wonder if the problem could be the pressure switch?
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I just tried mine and had an intermittent behavior symptom and changed the batteries and intermittent behavior symptom went away.