I just submitted my first secondary today, but I hope to have all 24 out by 8/10. If I am done by the first third of August, am I lethally late? 3.65/3.54/35 MCAT
That also depends on the schools' timing with secondaries. If secondaries don't come out until August (hello Drexel, I'm looking at you), you're perfectly fine if you're complete within 2-3 weeks of their release.
To my understanding, July is early, August/early September is average (caveat: depending on the timing of the secondaries, you could be early), and October will require an impressive app to be competitive. Any later than that and you may as well smoke your money.