I'm looking at Harrell's Precision Premium powder measure. I want to ask opinions of this unit as I would like to be able to throw consistent loads. I have had 2 Lyman DPS units and don't want to invest in electrical units. If the Harrell's will throw consistently accurate loads I don't mind spending the money. I have a Frankfort Arsenal unit and it will vary 3 to 10 grains each time it dispenses a load. Thanks for all advise. James C.