SimBox NG

So after reading @jross excellent article about flightsim feedback, I felt the urge to venture into this particular field of tinkering…
I have a JetSeat, but haven’t used in in several years. The JetSeat is more or less a pad that you put onto your existing chair. It has 8 vibration motors.
The effects it provided was a mixed bag. Some effects were very convincing, while others were not. The motors also made a high freq. electrical whining noise, that I could hear through my headphones. I tucked away the JetSeat, but the idea of haptic feedback lingered in my small brain.
When I made my own seat for the SimBox, I thought about putting the JetSeat motors in it, but discarded the idea.

Then jross wrote his inspiring article and produced a video of his feedback system…

Now I have a set of four bass shaker and an amp, making its way to my address.

The Amp has two channels and there are two shakers per channel…
But where should I put them?

Should I strap all four of them to the rubber sheet under my seat cushion?

Maybe two under the butt and two under the thighs? The thigh shakers would have to be buried into the padding, whereas the butt shakers would be strapped to the underside of the rubber sheet.

I could put two shakers on the backside of the seat. But that would mean there would be no damping of the vibrations and I’m afraid there will be audible resonanse.
Maybe if I cut holes in the alu sheet, so the bass shakers wouldn’t touch the structure…? :thinking: