Haven't seen anything but that doesn't mean much. I can say that the M600P Fury Scout Light uses the same XM-L emitter as my early generation P2X Fury and I don't see much of a difference between the two. You can see them compared below at a distance of 30 yards from the swing . . .
The reflector of the M600P is a little bit smoother so the M600P has a slightly (and I mean VERY slightly) tighter beam than the P2X. Like I mentioned, my P2X is an old one so I don't know if the newer versions have the same reflector or not. Aside from a few beamshot photos I haven't taken any additional measurements or made any other comparisons between the two.