OK, so Midi out from POD HD 500 into Midi in of the DT-50 head does not do anything. If the DT had midi like a rack effect (like a G Major or something) then it would switch presets. I was hoping the voicings on the DT would act as presets but that does not seem to be the case.
Zap, how would the L6 Link change anything on the DT? If you choose "Amp Disabled" on the POD then there are no controls available to change voicings, modes, or class on the DT.
I was hoping to experiment with a 4CM today but the POD alone cannot control the DT voicings in the 4CM through L6 link or Midi by any way I can see. I can have a separate channel switch and change channels on the DT but that will be a completely separate function.