So after 22hrs on watch I drove home and still awake, decided to fit refurbed M5 wheels to TDS.Bad move, first one on,solid on strut, need spacer, no problem, fit spacer,easy-peasy.Go to other side,fit M5 calliper, bleed and on with wheel, easy. At this point the wheel lock bolt rolled gently across the floor and down the drain, down three feet to a slurry pit. Now have a wierd set of brakes and wheels,why did I get up this morning???????