hi martin, i forgot to mention my last few years on inspection i started to use an elastic band for measuring tie two knots at each end and use the knots for measuring you never find i job wrong just the way they like it it dos,nt stop the jobs going out does it if you send all them corrections out and concessions they dont like it. i used to work with a lad called bobby farina worse than me for drink ,he used to fall asleep during the day on the inspection tables with the drink off the night before he used to have about 10pints on a monday afternoon before a nightshift on the night. i used to show problems with jobs to inspection foreman ie plug gauges not going thro holes he used to get mallet and knock it thro and would say there you are it does go thro great is,nt it