Thanks Matt, that now makes perfect sense to me,
I'm about to start cleaning up the frets this afternoon and do the nut tomorrow so it gives me time to prepare and take my deep breath
I can work in 'old money' too. That's the advantage of being born in the early 60's before decimalisation took place. When I started out as an apprentice in the 70's a lot of factories were still working in inches as well as metric - for our European neighbours - so we were sort of ambidextrous in terms of measurement. I do prefer metric as it's far simpler since it's always tenths or multiples of, but my feeler gauges are imperial and metric (as are most I suppose) and calipers, height gauges have the metric/imperial switch.
I'm in a strange state really, I weigh myself in stones and lbs, I measure myself in feet and inches. Distance I measured in metres or millimetres - unless it's long distance where I revert to miles. Kilometres have no meaning for me and I still measure my car's economy as MPG not km/l.
I drink pints in the pub but buy cooking oil in litres. I can picture a kilo (the weight of water in a 1000mm cubed vessel) in my head when buying weighted goods and yet I'll still buy a hundredweight of potatoes, well it all makes sense to me, but confuses the hell out of my son.