This step is securing the jig to the floor while it is in position just sitting on the fuselage.
Using clamps, bungy cord and weights I bent the floor to the right contour. Then blocks of wood were screwed to the sides of the jig and glued to the floor with 5 minute epoxy. This was at the edges which will be contoured anyway later.
Once everything was set up the floor was easily removed and placed on the bench with the curve intact.