I like his article "Latent Heat is the Wicked Witch of the South" this is why in Houston we have such long run times. I get this a lot, especially from folks in older homes, Bill my a/c seems to run all the time, well Mr. Jones, when your feeding your a/c with latent heat all day long through cracks in walls, doors an etc. your need to starve that a/c by sealing up your home first. Or as Mr. Bear would tell them, get yourself a whole house dehumidifier, which I personally think is the best bang for your buck in our climate, or just add one to your new system.