My excitement on looking at the images when we got home propelled me to contact the British Rock Art bunch and I tried to post it as a new site on here.
Know how you feel about getting excited H D. Take a look at the close-ups of some of the stones here -http://www.themodernantiquarian.com/site/2064/alphamstone.html
A few of us thought these may be cup marks, and there was a discussion on TMA about them somewhere (think the consensus was that they were probably natural though). Alphamstone does look like it's a Christianised site, so that might slightly increase the possibility that the cups there have been worked - or if not worked that they were chosen for their cup-like characteristics.
Sorry, going off on a tangent. Good luck with your own find.
