In 1992 the WTCA Board of Directors was reviewing TPI-85 Appendix P: Quality Standard for Metal Plated Connected Wood Trusses and found a disconcerting term; “firm embedment”, where a certain percentage of the plate had to be in metal to wood contact. This lead to a WTCA project, by Mr. Pat McGuire, to determine if “firm embedment” was possible for truss manufacturers to comply with consistently.