Vortex Sound Research

I have a mostly full 6u Rackbrute, and while I'm largely satisfied with the system, I frequently find myself wishing for more Maths. I love using the EGs as VCOs, plus the Cycle input is a favorite feature. I bought a Pip Slope Mk 2 and it's been a big disappointment (doesn't cycle fast enough, no slew functionality.) I would also appreciate the mixing and attenuverter functions.

Is this a good idea with my current rig, or should I try something else? Or, if you have two Maths, would you recommend the combo for a rig of this size?