I cant get reverb spill over to work.
If you are familiar with the Solid Gold FX Surf Rider pedal, you'll know that you can control the reverb depth via an expression pedal. This is awesome because you can make on the fly adjustments to the depth of the reverb. Also, the reverb that is generated, is not affected by subsequent expression pedal adjustments. It's just "spills over". Great for on the fly reverb stabs. Demonstrated here: https://youtu.be/wcOtj6weHHM?t=205
Is there any way to do this with the Helix? I've tried mapping Reverb Block Depth and Mix controls to my expression with Trails set to "on" but, no matter what I do, adjusting the expression pedal affects the Depth/Mix of previously generated reverb which deletes the spill over effect. I've also tried doing this with an outboard reverb through the effects loop thinking I could adjust the mix there but, same thing. Trails works fine when bypassing the verb but, I cant get spill over to work.
Has anybody found a way to do this? Thankyou.