The Morrisons are certainly challenging. Ross is a whizard in this area and very generous with his assistance in general. I'm sorry I meant to include his email this am but I guess it was too early for me to be thinking too clearly. He can be reached at ar.mackay@ns.sympatico.ca
I believe this is his current address if it doesn't work please let me know. Good hunting and if you find a connection with my group don't for get to let me know.