Yes, found it quite easily with the co-ords but took the wrong track off the road and ended up in the fields behind it, had to dive through a sheep-sized hole in a hedge to get to it! Had to stare long and hard at the panel to see anything but when the low sun came out of the clouds some showed up quite clearly with no flash or water.
Found the other cup n' ring on this panel as well, looks like a few rings added to a large natural cup? Will add some more pics.
I loved the little Tullagee stone, it looks much bigger in the survey but it is a cute little piece, met the farmer coming out of the yard who's a very nice bloke, no problems popping in to ask.
Going to see something that should be quite spectacular soon :)