Ha, what fun a cross pond 'discussion' on the ID of Sycamore!
The grey cells are regenerating, not long after my last post I remembered A. platanoides was Norway Maple...about an hour down the highway driving at 110 kph (wheee...such fun when I'm used to 45kph!) So the Sycamore I mean is A. pseudoplatanus, has red petioles...
I do know its not the sneezy one! Even in Bermuda we have some very large London planes, I know what they look like.
Ta gents!