The French cleat crisis is over. The hanging cabinet is back on the wall with a more secure French cleat. All the crap that did the bounce test (thanks Ralph) survived and is back in the cabinet and I'm back to working on the new bench.
The crisscross is installed and working as advertised. Next is installing the screw and nut. It is mostly fiddly work making sure everything lines up and nothing drags.
Once the nut and flange are screwed down and the action is free I'll take the vise and backer board apart and finish shaping each.
The next step is installing the slab followed by marking the positions of the upper and lower backer board mortises on the slab and long stretcher. The whole bench will have to come apart one more time to chop the mortises then back together with vise and backer board installed.
After installing the vise all that is left to do is making a tool tray. The fat lady is warming up backstage.