Just to clear up something about the APC setting confusion, I bought a Topre Realforce for Mac keyboard with APC today. The colors of the caps/num/scroll/etc. LEDs all change when you press the APC key so you know what the setting is. I can't imagine that the Windows versions don't do the same thing. You just have to remember what color is what activation level (blue = 3mm, green =2.2mm, red = 1.5mm). The RGB, in comparison, lights up the entire keyboard in blue, green, or red, but the colors mean the same thing.
On a side note, this Mac version is a uniform silenced 35g model, and it's surprisingly nice to type on. It really doesn't feel very tactile, but it's not mushy, either, which is what I was afraid of. Of course it's extremely quiet, since it's factory silenced keyboard.