All Installers should be CFI members, information packets should be at every retailer, supply shop , distributor. First year 25$ for basic members, not tested just to familiarize with association, then R&C 1&2 after testing. Member should get proper install methods booklet. Somehow I gradually, slowly, got sucked into this black hole of flooring installation, and can't get out, why should anyone else! So at least we should be installing correctly.