Thank you Fledermaus. I'll try your routine if my other efforts prove to be unsuccessful. The default size of the bore gauge is 1 inch for this XY Offset Calibration. My bore gauge is nearly 2 inches, and I'm wondering if that may be part of the issue the amount of time it takes to travel that larger distance before the probe strike.
I'm out of town, so once I return home, I will try a faster approach speed first, then try some debounce if the faster approach speed doesn't resolve it.
So grateful for all the responses. Thanks to all for your help.