I am finally assembling the fuse and up to the floor, waiting on the sealant, question is, did you apply the sealant to the side skins-firewall and the floor, or only the floor-firewall at this step? Thanks, Bret.
I installed a rivet in the top side skin- to-firewall flange hole on each side, which gave me that 'ring of confidence', even if the firewall sealant would have been fine on its own. It will get drilled out very soon now, in order to install the cowl hinges.