I've been meaning to do an analysis at a true statistical level. From an observational level, I'd say scores dropped fairly noticeably across the board by 1-2 points overall as the system was introduced. Several judges noted their surprise the first few contests at how much lower the scores were when they were clicking on the defects as they saw them rather than writing a score down as a maneuver was completed.
What I cannot say is how much "compensation" has happened as people in the district here have started getting used to scoring by clicking downgrades.
Peter+