Trusses are handled, erected, installed and braced to AS 4440 and designed to engineering principles; a structural fascia (at least 190 by 19 mm softwood) spreads overhang loads; trusses sit as their design shows; girder trusses are treated as concentrated loads with lintels designed for point loads; trusses are not carried on internal walls unless both are designed for it.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.