I understand that this has it's own controller that cycles the flow at three different rates, roughly 600gph, 2000gph, 4000gph then repeats the cycle. There is a knob that lets you choose the time each flow runs. I'm not sure how long each is. I think the minimum is 10sec for 600gph, and 5 sec for the other two.
That being said if the controller is making the pump spin at different speeds that often, would the Hrz difference matter that much.
Anyway's I think the idea is golden but quality need to be refined.
I jumped last night and ordered one so I can see for myself what this pump is all about. Maybe it can be made better with a little tinkering.
I'll keep you posted.