Charlie G,
It is interesting that you mention 230......Reading back through the thread it is with great sadness that, if the system had spent a fraction of the money introducing this trial on a decent harness for one of the crewman 3 years ago, then 230, the RAF, his wife and most importantly his children wouldn't have lost a good man.
If all the system is trying to achieve is a few pounds saving diesel, then I'm glad to see we have a priorities in the right place.
RIP Mac.