I have been using the RCBS universal hand priming tool. Works well. I like to be able to feel how the primer seats. Not sure it matters that much though
Ditto. I like it, though I am starting in withe some arthritis I am good with it. More my thumb than my grip.
The downside is the tray setup. The new larger tray is awkward and it can (did) break the holder which is not substantial. RCBS sent me an almost whole new unit that had that part in it.
I wanted to see how it went so I taped up the old one and its still going. If I put the new one on I will reinforce it and likely ok. Done 8,000 rounds at a guess with it.
I do like the slip in feature I don't have to move shell holders around with.
The only case its a bit iffy about is the 7.5 Swiss which is different from any other case and no base heritage.
The issue really is more the brass pocket, its not quite US size (metric I am guessing).
It seat primers down .003-.005 and I can shoot 1/2 inch and sometimes better groups though I don't know its the primers (I suspect you would need to be down in the 1s and 2s to see it affect a group unless the priming tool or use was really bad.)
My brother gave me an olde non universel, its tray fit, smaller, rounder, that helped.