Re Ultraedge: Does anyone know if it is 100% reliable?

For instance, if a cricket bat and ball come within a very short distance of each other (but not into contact at any time) at relatively high speed and in opposite directions then can this cause a noise which would be sufficient to cause a spike? I'm conscious that if I was to swing a tennis racket for example really hard but without touching anything then it would still make a 'swish' noise.

I've tried to GIYLF without success, wondering if anyone knows?

Posted By: NorthByNorthWalsham, Sep 13, 12:49:41