I recently baught a crossfire 68/45 eith a blue and silver reg on it. Im having it hydro tested as im making this. My question is if my blue reg is a high or low pressure reg? Im thinking about buying a machine vapor from trademygun.com and have been told you need a low pressure regulator for use with that gat. Is my reg low pressure? If not is thier a kit to make it low pressure?