hello i own dx7, but i've heard there are some problems with controling parameters via midi in real time. the gossip says that dx7s and other newer ones can be controled via midi in real-time, so using stuff like evolution uc-33e would be possible. is that true? should i replace my dx7 with dx7s or other one? and is there any thing in which dx7s is WORSE than dx7? cheers EDIT oh, and what about synths like Korg DW-8000, M1, Roland D-50 - is it possible to control their parameters in real-time via midi?