Virtual FlexFuel has some fun aspects to it. If you plan to switch between E60 and E10, invest the ~$100 in a real ethanol sensor and wire it up. There are full plug n play kits available for ~$300 for sensor/wiring/fuel line adapters as well. No more guessing or worrying about the ECM sticking with the wrong Ethanol % in the tune...

Glad you're making progress!