I have two chargemasters one died after 21 years, I can tell you the original would throw a weight off by a grain and the only way I found out was the horrible Chrono results. I pulled the old balance beam out and found they were not the same weight from one to the other. That is when I just started using it to throw a powder charge to a half a grain less than needed and trickled to the weight needed on the beam. The second Chargemaster, purchased two years ago, out of the box, I tested against the balance beam on first charge and it was perfect, at this point I would check every third on the beam and they were perfect. Then, later on, started having Chrono problems again, checked with the beam and it was throwing out charges up and down, sometimes up to a full grain. If you have a system that works for you and you are not concerned with time, it is no faster if you end up doing what I have to do, then save the money and continue with your methods. Just my .02.