With plasma cutting the key is dry air and a steady hand (and the right amps). Some people have small compressors and that's a problem. It doesn't matter if our cutter or a competitors.

Inline filters help a lot and aren't cheap but I use them. It's best to use them at the back of the cutter, not at the compressor. Some people are cooling the charge pipe/line to the tank with good results. A little more work, but again good dry air from a small compressor.

I like what starvingartist said about 60PSI, lots of post flow and good dry air.

60PSI will cover up to 1". The dry air will assure a nice cut if you move at a good speed and "it will save on your consumables". Post flow will cool the torch down. Maybe our manual doesn't say it that way, but it is in the manual. Use that combo and you will be very happy with your cuts.