Chroist!!!
When I saw him at Bristol, he was in the bar, with is guitar with a remote/wireless thingy n was supping his pint n talking to us all n doing his sound check from there - maybe you put him straight?????????????
Afore resorting to worst case scenrio, take iit to Kwik Fit or similar with an air gun cus they don't use a huge amount of pressure/torque but its the constant impact pressure which does the nuts so tight. I would think that was wot they was put on with so maybe that will get them off?