has anybody created any kind of trigger device that has a similar feel as a keyboard key? something springy and velocity sensitive, relatively accurate. i'm interested in creating something similiar to the jammer (http://musicscienceguy.vox.com/). i'd like to build it from scratch, rather than modify an expensive keyboard. also, i'd want to use midibox to map the notes instead of computer software. the midibox mapping and all that i could figure out, i just have no idea how you'd make a switch that has a good, velocity sensitive, playable feel to it. i would think that a quiet jammer keyboard would be a must. any ideas would be appreciated! ultra