I got some Red Furies today, and they are basically the 'same thing' as the Blue Fury.  The main difference that I can spot is that the heatsink fins are shorter (which allows these to be placed on 'standard' hubs on adjacent USB sockets, while the Blue Fury unit that I have has longer fins that preclude that).  Also the heatsink is over the full length of the PCB, and is red in color (as is the heatsink).  The performance is similar and the same pencil mod applies to R15.

Cheers