I just picked up a Flextone III XL and a new FBV Shortboard MKII (great combo btw, I love it). It looks like everything is laid out all the same as the standard FBV Shortboard, except it would seem Function 1 now controls the FX loop on/off, and Stomp controls the Compressor.
What does Function 2 do? I've read an old post that says it does nothing, but there are Line 6 default presets that light up Function 2 when I switch to them and other presets that turn the light off when I switch to them. Only a few of the presets I have tweaked on the Flextone itself, and none of them were tweaked while the shortboard was connected as I just got it last night. So it would seem it does SOMETHING, but I can't find any info on it.
Just to cover all my bases, the Shortboard MKII had the latest firmware out of the box, and the "new to me" Flextone III was re-flashed with the latest 1.10 firmware along with an A+D factory reset before I started playing with it to make sure it was as "factory fresh" as possible.
Thanks for any help!