With how precise these scales are, I think the environment and ambient temperature in which they are used probably matters quite a bit. I bought a “grade B” granite surface plate a few years back off Amazon for ~$50 to put my fx120i on, and since, the scale has been much more stable and low...
www.snipershide.com
Ingenuity powder measure and soon to come thrower. Or combine V3 an ingenuity powder measure.
If you are LEO, mil, or vet then RCBS has a good discount program that makes their MatchMaster reasonably affordable. Might work for you and be less $$.