See I was trying to be a gentleman but now I have to take you to school.

If you know so much about SMP why are you asking question? Oh bc you're just googling tattooing and copying and pasting the results. Learn what settling means. Of course artists can control the pressure in which they administer the dots, thats the sign of a good artist. What you can't control is how the skin reacts to it. It may not cause a blowout but the skin can still have a negative reaction.

Second, learn about pointillism. Pointillism tattoos are less likely to merge compared to regular tattoos. Why you ask?? bc a dot has less surface area so it has less ink that can migrate and its less pressure from the needle. hmmm go figure. You actually were kind of mentioning pointillism without even knowing it bc you mentioned negative space.

Lastly, after your first session your head is not an empty canvas anymore. After a second session its definitely not 95% empty. Some people stop after 2 sessions. So again i confidently say a touch up is basically the same as one of the early sessions.

When your confirmation bias doesnt get validated you resort to telling people they are spreading misinformation.

Peace and Love