Does anyone know if Versa-Lok or Uni-Lock have a class that you can go to? I have heard (dont know if it is true or not) that they offer classes that you got to for say 2 weeks, learn how to install a footer, what slag to use, etc etc etc. and then you take a test and become a "licensed" installer? You can then get a contractors rate on block? If this is true where are these classes held and what do they cost?