> Using imperial and fractions of inches for that kind of work was more intuitive for me and a lot easier to figure out in my head. I find it a lot easier to me

> Using imperial and fractions of inches for that kind of work was more intuitive for me and a lot easier to figure out in my head. I find it a lot easier to mentally add fractions than decimals. Imperial fractions also tend to use base-2 numbers as the denominator. I'd be willing to bet that you infrequently saw anything that used thirds or fifths. Most everything would have been halves, quarters, eighths, sixteenths or even thirtyseconds of something.