Thought I would let you know that the Amplifi 150 functions admirably using the long board as a foot controller. This doesn't seem to have been documented. This also meant that I could circumvent the need of purchasing a short board.
I can only assume that there is no need to have the FBV Shortboard Mark ll as from memory the additional functionality that version has over the original shortboard was MIDI which the Amplifi does not appear to support.
I have yet to experiment in depth but have been able to access the sound banks and each of the 4 presets within them. From my brief trial this morning, Stomp box 1 works but 2 and 3 do not. The reverb, pitch shift/tremolo, modulation and delay buttons all work as they should.