Thanks - this was just my 1st go, so haven't delved into the manual yet. (Real men don't read manuals and all that...)
I was hoping there's be a config option to set the button function - that's good!
Yes, re. tone; I previously made an on/off tone switch pedal with just a passive tone control, which might find its way back. I was playing my Rickenbacker, so winding both tones down is too much of a faff; plus the FI is only on one channel of my split signal, so it'd affect the other one too.
Hmmmm, the term "data" may mean something different to different folks; I think you are saying that it is the value of the selected parameter's setting?
I know I'm being a bit pedantic, but I've just done a text search for "data" in the FI User Guide v3.03 and it's not clear at all what it does: the manual refers to "data loss", a "database", MIDI "SysEx data", mentions that "setting the data digit to 5 will reproduce the settings as saved in the editor", and says the digit displays the "Edit Data"; I think the next iteration of the guide could maybe explain what it means in the context of the FI. ((Please treat this as constructive feedback, BTW, not a gripe at this point, as I'm just starting out with it.))
Aside from learning how they are playing you, the trick with these synth pedals is figuring out where and how their sounds will fit in with what you want to play and whether or not a given setting takes over your sound or adds to/accompanys it.