Howdy all
Have seen a bunch of expression pedal posts; seems odd that it should be such a challenge to get third party, passive expression pedals to work with a multi effect unit in this day and age, but I digress.
Below are some pics of the necessary mods to a Morley M2 in order to get it to play nice with the Helix.
Essentially, you disconnect lead 3 from its correspondingly numbered jumper (someone please correct my terminology here), and connect lead 3 to lead/jumper 1.
The warranty-voiding mod is shown along with my sloppy soldering in thosr pics with a small red wire in them. It's possible to secure the wire manually if you're extremely dexterous or have tiny little hands or what have you, but I found it to be a little bit of a tight space to solder in.
Been a fan of Morleys for awhile - they're generally tough and I favor both their shape and height, but your foot may vary.
Cheers -
Dan