If you don’t mind doing offboard wiring, you could omit the bypass led and then use two separate 3PDTs wired up as normal true bypass in place of the 4pdt (millennium bypass? No schematic yet, but I’m guessing that’s how the led is hooked up) so you can bypass/engage the left and right channels separately. That would allow you to have harmonic trem before dirt, after dirt, or both before and after dirt (or into amp and in effects loop; before/after phaser; whayever) for three different distinct harmonic tremolo tones.