I had no problems with my EZ, but that was because I bought a Glock 42 first, and learned.

These small, very light .380s are a special category. Because there is less weight to counter push back, it needs a firmer grip. Now complicate that; the smaller grip leaves less space to grip. Then using a .380 generates less force to push the slide back.

They just need a firmer grip. That changed my Glock 42 from a jamamatic to reliable function.

I'm sure the reason I had no problem with my EZ was that I used a firmer grip from the start.

Don't resist using a firmer grip, it will work for you. It may also help with shooting left. If you use a firmer grip from the start, you may have less tendancy to squeeze it at the break.