Ummm could it be because the TF isn't really a MIDI pedal? Even if Eventide adds more MIDI out functionality to the TF you are still going to only have two foot switches on the TF, you can't get around that and most dedicated MIDI pedals have a bunch of switches.
Not trying to be a smart aleck or anything here but why would you want a delay pedal to act as a MIDI footswitch/controller for another pedal? I understand that you might not want another pedal on the floor but with only two switches on the TF you aren't going to be able to control very much on the other pedal so to me it defeats the TF's purpose trying to use it for something it's not designed for. Maybe there is something I don't understand with your issue/question.
