Now that I got to try both, I like RPM blast / team much more than Cyclone Tour.
The main difference between these two strings is Comfort. Perhaps its the Silicone coating on the RPM or maybe it's the Cyclone's twisted design, but the RPM certainly have a more plush feel than Cyclone Tour.
I found the Volkl Cyclone Tour harsh and stiff, particularly during the first several hours of play. Definitely not arm-friendly. Playability and Spin, however, are quite good with Cyclone Tour.