Gav....well done to both of you.
I broke a chassis there a couple of weeks ago. I was expecting it as the carbon was getting really thin after grinding out through the year, then i hit it and cracked some laminations, ran it a few more weeks and it destroyed it (and pin, turnbuckle, shock shaft!) when i went backwards into a wall. I also glued it up, ran another 2 meetings and couldn't break the block off when i actually changed the chassis!! stronger than i was expecting!!