Great looking bench work and room. I stumbled accross a good idea for doing risers. Use 1 x4's, cut a kerf part way up the center with either a table saw or router. When you put your riser on just use a large washer and large flat head screw through the kert and into your cross beam on the layout. This way when you want to adjust your riser all you do is loosen the screw, make the adjustment, then tighten. Takes away the many many many required clamps or trying to take out a fixed screw and trying to put it back in again. Once you get things were you want them just put another, amaller screw, in through both pieces of wood, don't forget to use a pilot hole for this one. Remember that when using power tools always think SAFETY !!!
Keep the info comming nothing is too boring, we can all learn.
Again great bench work and room, keep the pic of the progress coming. Ron.