Harrel (culver) is all about repeatability and consistancy. From the bench, if you are reloading your next 5 rounds into your lathe turned cartridge case to fire through your tight necked receiver and you see from the grouping that your charge is a little warm or cold, you can "click" up or down by the sub 2/10th grain without a scale. If you switch guns and need your bench load for the powder/gun you are about to shoot, you look in your notebook (or on your laptop) and use the micrometer to dial in the new load. (Look Ma, no scales). Repeatability and Consistancy. I am now longer at the bench with arbor press and wilson dies. I no longer spend Sunday mornings at a friends machine shop turning my tight necks on his lathe. My culver was sold long ago, but, it was an education in consistancy and repeatability. I now use the Chargemaster and it is another education. Ease and Consistancy. my 2 cents. thanks rc