I'v been trying to use my TD-3 with something external for a while now, addtictive drums seemed to offer the most sound quality, kits and dynamic processing. I'v read about a bit, apparently the midi signal needs mapped before you use addictive drums as a plug in so that the information can correctly respond to the velocity, choke etc. having a bit of trouble using the midi mapper side of things, not sure if i need a in out signal rather than just an out, doesn't seem to want to play ball, anyone got any experience with this kind of thing?