my estimate is 75 for e4. rui from atar notes said "This, however, has got to be the most draining MX2 paper I've done in a very long time. The only other time I recall of feeling so defeated was in 2018 or something where the chaotic Euclidean geometry question showed up" according to the raw marks database, in 2018, an e4 cutoff was exactly 72 raw but tbh i think more people did better in this exam than i originally thought so e4 might be higher like 75-77, possibly 80. a raw of 90 might then scale to a 95. would be amazing if it was closer to 2014 scaling, raw 90 scaled to a juicy 97.