Regarding studs in boots, for drivers. there is an official date stated then studs were REFITTED into boots for ALL arms of service, (per this date drivers and Armoured vehicle crews were exempt. Typically I can't lay my hands on it at the mo)
Has to be said, after talking to vererans, what was worn 'in barracks' and was worn in field did vary dependant on co's tollerance, etc.
White mugs fine, andas for rear buckles being femoved from web belt, walking out purposes only, (and only then in some regts)
Andy