Is that you cl516 from KSS? Good to see you here, I would be interested in your impressions if you post them over at KSS.
I had the same exact feeling about the env mod amount (used to it from the virus), and it was the source of my negative comments about the oddly chosen hardware knobs and the unmappable parameters.
I hope we get a good answer for your question, I ended up using the CV modulator as well, for filter env mod mapped to a knob, haven't tried FM synthesis yet though.
cheers
ripe