The numbers are just for reference, so you can tell how many quarter turns you've made. The screw can be turned a few full revolutions both in and out. You should of checked how far it was out on the stock screw and used that as a starting point.
start around 2 turns out. so screw it in till it bottoms out, then back it out 2 full turns. worked for me. im not sure what mine is even at now, i just fine tune it as i go to whatever seems to work the best.