>>If [a big if!] we ever have a VC mixer, couldn't that be used to perform
waveform blending? Wouldn't it be preferable long term, if a VC mixer is in the works, to have VC PWM support in the 310, and use a VC mixer to blend waveforms of a 300 (and others)?<<
A VC mixer would be nice, but it is really just several VCA's mixed together. So there's no need to wait, you can do it now.