I am from Tucson and have worked in this trade there, but it has been about 8 years ago. When I was there wages were low and work was sporadic. I was pretty green, so I never really had a grasp on the market. I am seeking information about the current market. My family that still lives there tells me that the evap to A/C ratio is changing and the qualified labor pool is dwindling. Any truth to that rumor?