hughmcm:

To get round this, I've 'Y' split a stereo TRS cable from a Digitech FS3X 3 switch foot switch, which the Eventides pick up as default, the RH switch tapping tempo, the middle one repeating delay on the TF and slowing on the MF, and the LH switch shifting in and out of Bypass. The Y split cable coordinates all three, and you can still control each on on its own.  

I have been having the same problem in trying to tap sync multiple pedals while having MIDI pass through all of them. Can you explain exactly what you did to get a Y split stereo TRS cable don't think ive seen one for sale? any issue with creating a 3 way split cable?