The Dochter wrote:
My solution was to pan hard left 'PCI card in L' and hard right 'PCI card in R', set all the aux sends to '0', clear the aux effect board and in 'LE' pick up the signals through VST inputs 7and8.
That same routing is found in the Stereo Product Default session. Both a wave and asio send are inserted into the aux inserts to provide for a single source of stereo sends. Apparently, having 2 stereo sends from the mono input channels confuses some people, especially once you start panning those channels.
Anyway, set patchmix to the configuration most comfortable to you and save it in your My Sessions folder. My own sessions are set-and-forget; I hardly ever need to tweak them except when I want to insert an fx or something.