Super Reflexes is an excellent defensive set. Dual Blades is... less good. I always wanted to like it, but just couldn't make myself do so, even after many, many tries on both Live and here. It's just too slow for my tastes and the combo system is IMO poorly designed.
That being my opinion, the only one that actually matters is your opinion. Are you having fun? If you are, then everything else is irrelevant. If you're not, then try something different.