New here, Help dialing in 20 gauge steel and a few other questions

CrossFire ® PRO
15

I decreaced my cut Height from .06 to .05 and its cutting a lot cleaner.

Here are my settings that I am happy with the results with.
30 amp 65 lbs of air.
Feed 180 ipm
Pierce Delay .1 sec
Pierce Height .15 in
Plunge Rate 10 ipm
Cut Height .05