Ive not confused about how it works. Other seemed confused about what I was asking— perhaps I didn’t describe clearly enough.
What Ive been asking is if it’s beneficial and worth using.
How would any of us know if it's beneficial to you? It appears that
you want to say that it isn't beneficial and worth using...and that's ok if you've come to that conclusion. The product does what the manufacturer claims, but there are side effects as is often found when modifying hand guns.
It may be a benefit when:
The user has small hands/short fingers and shoots from hammer down.
It may not be a benefit when:
The user has large hands or shoots a de-cocker model CZ.
If it's not a benefit, then it's not worth using.