Voicing is just EQ. You can duplicate it with any of the EQ resources. It's not a big deal to keep it in there though. I was just trying to simplify things a bit.
I really want to add a "Brilliance" parameter. This would be a shelving filter between the preamp and power amp. It's similar to the Presence control in a Triaxis (except that you would be able to boost as well as cut). For certain tones the ability to roll off the highs out of the preamp would be nice. I used to keep the Presence on my Triaxis fairly low. This gave a very focused lead tone that cut but wasn't harsh.
So I was thinking I could get rid of some of those legacy parameters to make room for the Brilliance knob.
A Brilliance parameter like that would be brilliant.
FWIW I don't use any of those other parameters much myself.