New Reports: Using 'gaps' (dif. bet. rater grp avgs) w/in display logic, & conditional & pipe txt

I'm trying to access the 'gap' statistics shown in the new Gap Chart visualisation - the differences in mean scores between rater groups in 360s - and use them for the following purposes:

1. Within visualisation display logic (custom rules)


2. Within conditional text


3. As piped text within text elements

Has anyone been able to achieve this? It's frustrating, as the gap statistics are already used in the Gap Chart visualations, but don't seem to be accessible elsewhere! Help!