Hi,
the overheating in Gryphon, which I thought was a blown head gasket or poor air flow, turns out to be the unique way I set up the radiator when I rebuilt it is very particular about water levels. Not enough water and the water pump sits there spinning fresh air.
3rd gear problem, which was why Gryphon got banished to storage in 2011, is more of an intermittent problem now where some times you have 3rd gear and some times you don't. The pattern forming seems to be if you are wanting 3rd gear and are thinking about whether you will get 3rd gear when you change tends to mean that you won't get it. However if you are thinking about other things and just do a gear change up from 2nd without consciously thinking about it tends to find you in 3rd gear. 4th to 3rd is like a Unicorn, never seen it.
I will ask Paul about photos of Missy in the early years, but I only have a handful of photos of the Griffin and a couple of snippets of video from back in its day.
Terry