For reference here is the 350 vs 525 failures from last year side by side, the 350 failures seem to follow a normal distribution curve, with the peak of 525 happening earlier and skewed right. Going from 7 days to 18+ days will be huge. If it were up to me, if they are going to do 18 days, I would probably just go to day 21, which would give 4 doses: day 0, day 7, day 14, day 21, but anything past 14 days should give us less early failures.
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