Anyone shed any background to the HAWK race frames, I've got a F20EX which I bought from Edwardes about four years ago and I saw them available through Dan's Comp around that time. I believe Edwardes imported some for their race team some years previous and this was a leftover from that time. Apart from their unusual square aluminium construction did they have any good features which set them apart from other frames of their time - and what dates did their manufacture span?? Humps