I hope I wasn't coming over as being negative in my previous comment Kevin. I had been thinking of a roll bar myself but just came to the conclusion that a full harness would be needed to make it effective. I'm still having a think about it as at some stage I'm keen to do some sprints etc in it.
Jay, I know what you mean, a full harness would be better, but a roll over with no bar would probably take your head off, so to my mind it must give a bit of extra protection.
I should get it back in time for Curborough, hopefully see you there.
Kevin