There are some things that need to be set correctly for trails to be preserved during preset switching.
One of these groups of conditions need to be true:
- Your pedal needs to have a built in trails feature
- You keep your pedal on at all times, either by not putting it in a PBC loop, or keeping the loop on at all times (or at least, when you want trails to continue)
OR
- You have a PBC/10, or a PBC/6X with an external line mixer
- Your pedal is routed in parallel with trails enabled