We do our sprints a little differently than most, where a story just needs to finish QA and Owner Acceptance by the end of the sprint, and it isn't marked "Done" until closer to release (which may be several days after the sprint ends).
Because of this, our rollover count is much higher than we would expect.
Is it possible to customize the rollover sprint report, such that we're calculating rollover based on number of stories that have made it to OA (or whatever status we choose) by sprint end, rather than the number of stories that have reached "Done" status?