I have had zero issues w/ a Lee Pro Auto Disk as long as it's not a really find ball powder like H110. That powder leaks to much. But for plinking pistol rounds it works great. I only use ball powders in it so it meters like water and all charges are spot on. I've done no work to it as it's worked out of the box and thousands of rounds later it's still going. For rifle or specific loads I use a Chargemaster. Can't go back to an off press powder measure after using it.