Cheers Ken :)
I'm not totally sure that's it, but I think it's much more similar than the Derrynablaha panels I've seen photos of (i.e. those here and on Megalithomania). It's often tricky with these old interpretations, you can never be sure if there's been weathering, or how much the artists may have included a groove where really there was just a slight natural fissure etc.
Hopefully, one of these days I'll get over to Kerry to see them myself.