Ben, that does look as though it will help with the dNms!!!
Please will one of the more academic and/or practical members of our community explain when it is best to put a huge long lever arm with a relatively low load on a nut or similar to undo it and when it is best to use a relatively short but stiff lever arm and clout it with a large hammer to shock and/or surprise it into undoing!!!!
Andy
although having never met Harry I think he was right to banish hammers when working on Lancias. Unless the fixing in question is not even remotely connected to a bearing surface, I would always use a long lever. Clouting will potentially damage bearings. I am not sure where this puts the windy guns?