can someone point me to good recomendations for using a powermax 600 on a cnc? The manual seems wrong. It says to cut 1/8" steel at 140ipm, 1/16" cut heigth and 1/8" pierce. I tried this and it seemed really fast, it didn't cut all the way through. I had to drop down to 75ipm to get a decent cut but I still have lots of slag on the bottom. Anybody know where i can start or if the 140 ipm is right and I'm wrong.