Shop temperature was 80 deg F and humidity was < 75%.
Epoxy was mixed (46g resin & 17.5g hardner) and flox added.
Flox was applied with a paint brush to the 15.5" doublers. The doublers were clamped to the pre-marked locations on the top longerons. Clamps were used rather than nails.
Flox was applied to the two location for the 5.5" doublers. The 5.5" doublers were positioned properly then a board and bricks were placed on top to weigh them down while the flox cures.