I have a chain of per-voice pre-amp group FX, some of which need gain staging (e.g., Lo-Fi). Is there any way to do this in a continuous way that doesn't use noteably more CPU? I can set the zone volume (which doesn't get applied continuously), the engine volume knob, the $EVENT_PAR_VOLUME, but none of these are applied pre-amp. I can only do pre-amp gain staging by putting in slot 1 either a) a dummy feedback compressor and adjusting the makeup gain knob, or b) a dummy 3x2 filter and adjusting the gain knob. Unfortunately, these use significant CPU, especially FB comp, and also 3x2's knob crackles when you move it. Any better solution?