The Milwaukee regulators are fine. I have never had any real trouble with mine. I found that setting the regulator to near 20psi then a combination of fine adjustments with the needle valve and regulator knob to get what i want. Once its set i never have to mess with it. I have to say the key is having the line pressure around 20psi! less and the bubble rate tends to fall off and to much its to hard to control with the needle valve. IMHO