Thanks for the invitation. Don't need factory ammo; been stuffing bullets into cases for over 40 years.
We all have different experiences. My luck with digital scales has not been very good. I've had at least four and have had a problem with all of them. Not necessarily accuracy, but battery life, florescent lighting, and other things you can read on the various threads here.
I still use them -- not for weighing powder where I want -- and safe -- quantities to be exact.
Like someone said a hundred of years ago: "It is the difference of opinions which makes a horse race."
Best wishes
Mike