What makes you so sure it's not true bypass? I don't know the pedal all, but it seems a bit odd to put a 3PDT in it if it's *not* true bypass. If you were to do a DSP-based pedal like this and just feed the dry signal straight through for the "bypass" setting, you'd only need a momentary SPST.
So...I'm curious - what makes you say it isn't true bypass? And if not, do you know what else it does that might require a 3PDT?
Thanks,
Tom