Is it 300 shots or 600 shots to see the Density effect?

My colleagues and acquaintances all agreed that a high shot is better for seeing the density effect.

Nevertheless, given the price difference, if 300 shots is fine...

They said there wasn't really a need to do it with 600 shots.

That acquaintance asked me!

An acquaintance is getting Dencerty for the first time. To see results, would it be better to go with 300 shots or 600 shots?