I bought one of those GEM scales above and it lasted 3 days. Amazon sending a replacement now, and I ordered another cheap one so I can check weights side by side. If they don't work I'll probably go with a beam.
The issue is trust and repeatability - I found some of the last cases I loaded had 1.25 grains more than desired due to drift. Wastes a lot of time, and if you don't catch it, could blow up in your face. A beam scale, while potentially not exact due to how your eyes see center, should at least be exactly repeatable - i.e. you're 0.1 grains heavy, but it's consistent across the batch, and from batch to batch.
Chargemaster Lite seems cool, but if you're double checking anyway, would prefer a manual drop measure for speed, then trickle up. Probably same time/round, but double checked.