Good explanation JimKirk.
Here is the video I mentioned:
https://www.bing.com/videos/search?q...77AE&FORM=VIRE
Here is another...go to about the 10:00 mark. This guys slams it much harder than necessary but his arm winds up right over the cartridge. He sits at the press the way I do.
https://www.bing.com/videos/search?&...VRV&ajaxhist=0
How JimKirk does it would be worth trying and is better than sitting in front of the press the way most people would.