Hi there!
I read a lot good things about those two rubbers. On Revspin.net both have a quite high score. 9.4-9.5 if I remember well.
I wish to put them on my Viscaria (FH: Super Ventus, BH: Ventus Spin) and to try something new (now I have Rakza X and Rackza 7).
Based on what I read this might...