After trying out quite a few different combinations, I have to say that Babolat VS Touch (1.30) and RPM Team (1.25) still remains my go to reference. IME, playability wise, RPM Team is very similar to the RPM Blast; it plays much softer than its specs suggest and, in terms of durability and tension maintenance, it beats anything I've tried so far.
Have been wanting to try this as a cross due to the string tension maintenance. Numbers are close to 4g. How do the natural mains hold up with the shaped RPM crosses?