I've always done it pretty much the same as Len, shooting at 30-35 lbs, except for Alclad, which is 10 or so. I'm somewhat intrigued/puzzled by your method, Chas, but maybe I'm not following it correctly. You say you have 1-2 lbs at the compressor and 7-10 lbs at the "tip"? How is that possible? Mine drops a few lbs through the line, not gains....not much, but it does drop a little. If I only had 1-2 lbs at the compressor, it wouldn't spray anything at all.