I think the most useful measure would be to improve your spinning technique, by spinning itself.
That would require a lot of self-observation, and a lot of self-discipline, in order to perceive in which conditions the pogo-effect manifests itself:
- Which cadence;
- Which power-output;
- Which pedal/leg position cause the "jerk" and the bouncing.
A nice way to do that without too much rocket science is to add some cushioning to your ride for some time, be it baloon tires, suspension fork, suspension post, soft-sprung saddle, and the like. Train with one of these for a while, until you're satisfied. I think suspension-seatpost is the most direct and cost-effective choice for this case.
With one of these "devices", the bouncing effect would be increased a lot, and you will be forced to discipline your rhythm so that the bouncing stops or at least gets diminished.
I had a lot of unintentional training with that during my mountain-bike years, in a time suspension forks didn't have lockout systems. I think it worked fine, and if you do it consciously, perhaps it works even better.
Hope this helps.