Well I went back through this thread recently as I found myself longing for a P1. That manual also doesn’t list any bass fx but they are in there, so honestly who knows.
The Zoom, this is the 2nd in this new format they’ve announced. So there is 50g+ which does 4-5 effects and is a direct replacement to the 50G. I’m anticipating a Bass, Modulation and Delay/Reverb one coming out in the next few months. Still won’t have a headphone out but everything else is an improvement for gigging.