One of the things that bugged me on my own 4x5 is the single knob locking both raise/fall and tilt, making it impossible to set up raise & tilt with any precision. This new design, to be included with the "DeLuxe" version solves this issue by using two knobs. The raise/fall slit was extended and the guide was redesigned to act as reinforcement for the front standard, now that the slit goes almost the entire length of the piece.The side effect of this new feature is a reduced raise capability or reduced drop capability, depending on how the parts are mounted. When the parts are mounted as pictured, the raise and drop are around 1" inch each for a total travel of approx 2". When the slider is mounted backwards (the raise/drop knob is below the tilt lock), the drop is limited to .625" and the raise is extended to 2". Changing the mounting option requires no tools and takes a couple of minutes.
The new slide guide (offered for all kit versions) when used without the independent raise/tilt mechanism (used with a single knob lock for both raise/fall and tilt) slightly increases the travel range (compared with the previous design) to 3" (2" raise, 1" drop).
