"I was watching 'Standing with Stones' at the weekend, and in it Mr Soskin was going on about the mysterious long slot holes in the Stones he was looking at. Somewhere or other. "

I've got the DVD Rhiannon, it was'nt Wales or the South West which I looked at yesterday, so it must have been one of the other chapters, will check for you.. that roman one was a very skinny slot, you're sure they (neolithic/bronze) would have been capable of creating a deep thin slot?.
Actually I got sidetracked by the outtakes, they are incredibly funny;