Help! Deciphering Clipper Settings for Boys Haircuts!

Sadly, it's trial and error. My son started getting a "Caesar" when he had enough hair to cut (I've attached a picture). They used a FOUR on the sides/back and they didn't clip the top. If you're going to a hair place where they want to clip it all rather than using scissors, then find another place...that's just lazy! Now, my son (age 11) gets a four on top and one on the sidesor more commonly know as a long high and tight. My husband has worn a zero on the sides two on top USMC Reg high and tight for ten yearsŅhe just recently started wearing it slightly longer. Remember the key with clippers is start long/big - because you can go shorterbut donŒt start small, because you cant put it back when its gone. Four on top is fairly long - so if thatҒs to short for you - a clipper cut isnt going to work out! (Keep in mind, if youҒre going to an old barber, those old metal clipper guards that he might be using are MUCH closer than the plastic clipper guards used (and sold) now.