The Walbusch B5 is a diagonal slant and not a torqued slant and so the mechanism is no different from the Progress. If you want to try out the concept, get a PAA Alpha Ecliptic and put a rubber donut in between the base plate and the handle. It won't have the full range of the Walbusch, but it will dial in maybe one to one and a half step. I tried it once and found that if it got too large of a gap, the blade would have a tendency to snag some skin in the space between the edge and safety bar. Doing the same with a torqued slant (I tried it with an Ikon X3) also had limited adjustment before the blade would no longer be held stiff.