Is there any difference using the expression pedal jacks on say the Ground Control Pro vs. using the jacks on the Axe itself? I'm using my Rocktron Hex as a wah controller with one of the expression pedal jacks on the Axe (with one end of the TRS cable lead swapped) with no problems but as I set my pedalboard up coupled with my desire to add a second Rocktron Hex, I'm thinking of just jacking into the expression pedals jacks on my GCP to keep my TRS cable runs short. Any pitfalls going this way vs going straight into the Axe?