I have a stereo rig with a triaxis and a 20-20 plus a bunch of rack units for FX. All routing controlled wth a Switchblade. Currently I used the two Triaxis outputs for left right feeding into stereo FX but I do realize it is mono pre FX. Is there a difference between doing that versus only using one Triaxis output with a splitter cable, or in my case, splitting via the Switchblade which is equivalent?