Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
£20 quid Ash, you must have mugged him !I bought a s/h set of Davida gauges last year on ebay for £50, they work fine, very smooth and easy to use. I used to have a set of Morgans, the ones with the metal rods instead of mercury. The rods would 'stick' in the tubes and I'd have to tap them to obtain a correct reading whenever I made an adjustment.
I bought a cheap set from M&P. Before use I checked the calibration and they turned out to be spot on.