This is another experimental design, in fact it goes right back to the second key I made No 002 which I have recently refurbished, it is a combination of three designs, a vertical, low lever, and high leverage, and it will also use Neo magnetic disks for the tension, after a few modifications it is now performing very well indeed!!, I have inserted a bottom contact bar with a fixed contact block in the front and a gap adjustment under the rear part of the main arm, it is one of the smoothest tension adjusters I've made also the gap adjustment is spring loaded, again to provide fine adjustment which is really required on a very light touch finger key, now Nickel plated I'm quite pleased with it :)