I still use my star press. I automated it so all I have to do is load the feed tubes and push a button.
If I had a unlimited amount of loaded tubes then I could size 1800 per hour with me just changing tubes every 50 boolits and hitting a button.

I run two timers. One does the cycle (set for 2 sec) and one does how long it runs. So if the tubes hold 50 boolits then my run timer would be 102 seconds.
I add 2 seconds because sometimes I have 49 boolits in the tube and some times I have 51