Jason can't use it anymore as the licence he had ran out a couple of months ago. As its classed as an extension you have to pay for it now and they charge silly money, something like $150 a month so little hope of the hobby user being able to use it.
I've just been doing a couple of parts today where after the initial adaptive clearing I use a combination of 3D scallop which took care of the upper parts of the curved areas and then 3D ramp to do the steeper curves and vertical faces. Happy with the finish. This is more or less what the steep and shallow does but it decides what types of path to use depending on the surface rather than the user having to do so.