I have to disagree with one point ( 1 Don't get out the detector and start swinging - go for a walk.) If you are paying $6000-00+ for detectors you dont want it sitting in the back of the car while you walk around over possible nuggets. It's good to research and look around but you can still do...
I use blundstone for work & detecting (non steelcap ) you can lift the inner soul & dig out the steel plate they insert into the centre of the boot for strength? & does not seem to affect structure of the footwear, more importantly it rids them of all metal.