Microneedling, what’s the difference between tips with 12 micro needles and tips with 32 micro needles?

Licensed medical aesthetician and have been microneedling for years, I’ve worked with mostly 12 needle tips and recently ordered 36 needle tips thinking it was the amount of tips not needles I now have these tips and would like to utilize them correctly. Is the amount of passes over each area less? I’d like to know how best I can utilize these, do they treat certain skin concerns better than a 12 needle tip would? Any info based on other needle tips options available such as 9and 42 needle tips.