I just gave a general outline to what I do. I always encourage people to mess around with the settings and find what works best for them. I originally done a pile of renders of the same scene using a wide range of numbers then compared them to see if the extra time, larger numbers made a difference and which image looked best to me for the time spent and then went with that. I used to render on a 1050TI card with only 4G or VRAM, man, that was painful, I used to use 100 and 200 iterations at most, but I learned a lot of tricks to squeeze a lot into that 4G! hehehe... that's why I went with the 12G version of the 3060, no worries with VRAM limitations now.