Improved techniques for executing instructions in a pipelined manner that may reduce stalls that occur when executing dependent instructions are provided. The console further includes a controllable damper coupled to the armrest and actuable between high and low damping states. The existing MP accepts the new MP as a member of the mesh network and sends allowed power setting information to the new MP. constructive interference when the incoming signal has first and second logical values, respectively. Also provided are combinations, and kits containing the combinations for effecting the therapy. Finally the back surface is processed based on the determined aspherical shape.