I think the days of guys knowing how to read I slideing scale are allmost over, gone the way of the slide rule to do complicated math. Good luck finding anyone that even knows how to read it. now they just look at the digital read out. not that I am saying that is bad but how to read I slideing scale is allmost a lost art now..
P.S. I realy think my set are just a bit nicer than the HF plastic set, but that is the design, they are as accurate as you are carefull in reading them