I am curious about the difference between 100 shots and 300 shots of Shrink.

I am wondering if there is a significant difference in effectiveness depending on the number of shots of Shrink.
I've noticed that they are often divided into 100-shot and 300-shot options; I'm curious if simply having more shots means it's more effective.
I am curious whether I can see some effect with just about 100 shots when treating the entire face, or if I need about 300 shots to feel a noticeable difference.
I would also like to know the clear difference between 100 shots and 300 shots, and in which case to choose.
If anyone has received 100 or 300 shots of Shrink, I am curious if you actually felt a significant difference in the effects.
If you could also let me know what criteria you used to decide on the number of shots, I think I could use that as a reference.