I've got the full termi and up-map ECU that comes with it, it very much improves the bike. But the roll off the throttle (even with the spacers) is something I'd love to solve one day. Has anyone had a custom map put on their Multi and tackled the values for the roll off? I imagine it's an instant drop to 0 rather than a quick but gradual drop off.
You may want to reach-out to BHP-UK as they work on custom maps for various throttle openings. They have a few YouTube videos on the topic and most likely can adjust the TPS to your specific needs.
Not sure about a multi, but usually when mapping a bike you just tick the box that says delete throttle cut off.. Although on a s1000xr you can choose the revs the throttle cuts in for various settings.