Thanks for your reply, Nick.
Yes, I get it. I standard use the second, by adjusting the send with the return (almost full) up.
But it's not a bad thing to have vc of the Mix-knob. I mean, it's time now to have Full Modulation Design in the Modular World. For Modular is not yet mature.
You know what also is very effective.
That is to vc the Pre-Delay parameter.
Ben