I don't play pedals, and you may be aware of this already, but on the Pa600 if I have the Bass Inversion on for a song like Bob Dylan's "To Make You Feel My Love" and play the following chord progression:
D, A/C#, CM,GM/B, Gm/Bb, Bm/A, GM, AM, D
the bass will play D, C#, C, B, Bb, G, A, D

Not sure if this is the same as what you are accomplishing with your pedals ...