Just rotating off study section myself, and I personally don’t see any difference - factor 1 is just the “old” Significance and Innovation and 2 is just Approach with any added weaknesses from environment and investigator.
The two factors are clearer and understandable. As a result, scores are much more consistent now, than in the past. It is a rare occurrence to see spread of preliminary overall scores of 3 points or more between three reviewers (eg 2, 2, and 5). (6/10)