I have a Mission Engineering SP1-RJM expression pedal coming in with my PBC soon, and I'd like to know if I can use the footswitch/button on the SP1 (connected to the PBC's 'Ext SW input') to access the Strymon Mobius' Wah (in the filter machine)? Basically, using this switch would just recall the PC I've saved for a Wah (giving IA to the wah). I guess I'm wondering two things. #1. What happens if I was in a preset that uses the SP1 as an expression pedal for one of the other parameters (ie. Mix knob on the Timeline)??? #2. Does pressing this button take me 'out' of the current preset, or can I just make it an IA (adding wah to the preset)?