Sorry, I was not sitting in front of the POD... so, in the L6 settings page 9, I set amp 1 to left, so only path A is going to your DT. Mixer at the very end of the chain and panned hard left & right, and make sure that there is no amp or (mono)fx before the split. Now the right 1/4" output goes to the TC guitar input, and then the most important thing I forgot to mention : I put a dummy cable in the left 1/4" output so the signal is split into left and right.
This makes sense ?
Sammy