...and I thought analog multi-meters are "old tech", I need to get me one just for times like this. JB is right when he said that most people have stopped experimenting because everything has been "discovered" and is taken for granted as empirically proven fact.

I haven't spent much time past few days on the pendulum case - I'm struggling to figure out best ways of winding tri- and more filar wires without losing my sanity (or feeling in my fingertips).

So we get a full wave from one pass, though isn't this the case with monopole motors as well, the magnets pass the coil in similar way?

I would suspect that the curve might actually look slightly different, the magnet moves towards the coil and induces current but when it hits the center it does not stop because I feel there's some lingering magnetic induction due to the imperfections of the cores we use - they do not demagnetize immediately. There might be a short platou then a straight dip across the X axis then another platou after which the curve continues in reverse. But that's all hypothetical, I could be theorizing all wrong.