"I use the handpress for seating depth adjustments at the range."
Same here and have not seen anyone else use one at the shooting clubs I have belonged to over the years.With what I am used to seeing at some of them it does not suprise me though. I bet though most of us here have seen some things that make us shake our heads and chuckle a bit. But that stuff is for another thread. Got the hand press just for adjusting oal at the range can't comment on sizing, You would be better with a bench mounted press for sure for FL stuff even for neck sizing.