I'm looking for a way to use drum triggers to trigger my SP404sx in a live drum set up. I also have a Scarlett Focusrite 2i4 that could be used in the setup if necessary. Could anyone tell me how I could achieve this? What sort of drum triggers I could use (something like the Roland BT-1 bars would be perfect i know i cant use these though)? I say something like the Roland BT-1 because it would be nice to be able to be able to play the pad without triggering the acoustic drum everytime. And finally, for bonus points, if someone could tell me how to/if it is possible to use multiple triggers with the SP404 despite the SP only having one MIDI In. (Please note: the Focusrite has a midi in and a midi out) PLEASE NOTE: I know the SPD-SX would do all of this easily but I am trying to avoid buying one. Thank you!!