So I'm intrested in picking up a case neck measuring gauge. Im looking at the redding model. I'm hearing that its best to sort cases using the neck wall uniformity with more than 1/2 thousandths differential, (unrelated because the gauge in in thousandths but would this be .005 or .0015). I guess my question is, a good tool for this and also does this tool easily measure case thickness as well as uniformity. I thought about just getting a tube micrometer for this but this seems far easier and faster, with equal accuracy as far as case sorting goes. Any thought, comment, or advise? Thank you And just for info I'll be sorting norma brass and am buying 120-150 pieces of brass.