I just saw video of this neat little gaming chair at http://www.d-box.com. Can anyone tell me what kind of actuator they're using? They appear to have about a 6" stroke and are very fast. I'm wondering if they're 100% electric or are some kind of pnumatic system. g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind.