Just a mini update of my sim-thing. I've had a Buttkicker Gamer for a while, but I've never been too happy with how it was mounted - First I had it mounted on the Nixim chassis but it just made a noise rather than making anything wobble as the nixim is so solid. Then I mounted it onto the metal seat base, and again, it was more noise than anything else, so I actually raced most of the time without it turned on so I didn't bother my wife too much. However, racing feels 'dead' without it, after getting used to at least some vibrations.
So, I had a brainwave this week - why not mount the buttkicker right in the seat foam - it means I'll feel most of the vibrations, and the noise should be limited.
I took the seat base off the frame, cut out some foam, inserted the buttkicker, and then put it all back together. The foam I removed was only about 50% of the way through the seat, so from the top you can't tell it's in there, apart from a buldge at the lower front edge from the handle
The result is fantastic - noise is reduced (although still audible) but the vibrations are _so_ much more powerful - I can literally feel everything now. I am now planning to buy another one, and mount it in the back, so the whole chair is a vibration machine.
Here's a few pics (and please ignore the dirty seat, it was 2nd hand and a bit grubby!
-al