The rivet of EOE from new machine is bigger than and the tab is not easily break out from rivet.
The tab of EOE from new machine is longer than the existing EOE , It make more force for opening the end and help to open the EOE more easiler.
To reduce the chance of score cracking from the stacking of the bottom of canned food.
increasing pop width at the pop step so to help to open the EOE more easilier at the tearing step.