So I'll answer my own question. I took a chance on the Sonic Port VX and it does in fact work plugged into the Surface Pro 3 Dock when switching the Sonic Port VX to the default soundcard and plugging in headphones to the Sonic Port VX device. I was then able to use Pod Farm 2.57 without issue. Sonic Port VX is a perfect GuitarPort replacement when using newer hardware in lieu of a Guitar Port driver update which is my guess at what the GuitarPort problem is.
