Nearly all the Blender Cycles nodes will work for SuperFly. However, the Blender convention for node trees reads from leftmost(inputs) to rightmost(output), which is the reverse in Poser Material Room. Some Firefly materials will work with SuperFly, But Not All - and Poser will tell you this in the log window as well as with dotted lines between shader nodes. Also a fact that lighting set-ups do make a difference - but this can be managed with fewer lights and better shaders setups under the SuperFly regime. Note that Material Room is now capable of using 3 different types of starting surface nodes. The default one is the Poser Surface. There is also a Cycles Surface base node and a Physical Surface Base node which you can call up by right clicking on the empty area in your Materials Palette work area. Certainly, Cycles Surface node and any shader tree built on that one, will be compatible with SuperFly, more so than with FireFly. Please do give the alternatives a try, because they do work much better than FireFly in some cases.

Eternal Hobbyist