Oh yeah, I mean I didn't think of it mathematically. Adcoms aren't computers, they're people. Assuming you make it past an arbitrary cutoff (which a 3.7 and 38 certainly should), what comes next is the adcom's opinion of you. I just know that if I was there reading application after application, especially at a top school, chances are I'd see a ton of 3.7s, 3.8s, 4.0s etc. A .1 difference probably wouldn't catch my eye. But 40s stick out. I wouldn't look at the two applicants and automatically pick the one with the 40 of course, but I feel like I'd be impressed enough to take a deeper look to see if the other info in the app is as impressive. I don't know, maybe I'm MCAT-biased. I just feel like with a 3.8 you have to think a little bit harder to determine what it "means" (what school did he go to? What major? What classes?) while a 40 on the "great equalizer" of the MCAT is a pretty clearly impressive thing.