I think what he means to say is that the farther you press it, the faster it comes back to you. I think. He should put things in simple language if he wants to make it easier for people to buy it."When this pneumatic force is plotted as a function of beater displacement a graph that is hyperbolic or nonlinear results." ~DUH!
Thanks, but I'll stick to springs. I only went to public school.
Air seals last for years in shock absorbers, where they are put into much more demanding use than a foot pedal. If this is designed well, the seals should last indefinitely, no matter how hard the playing.When a spring breaks at a gig...put on a new one. When the pump or air seals blow on this one, start digging for the spare pedal. I emailed them about the warranty and the expected life of the seals...waiting for a reply.