Pfitz Marathon 18/70 taper—not aggressive enough?

Hi all! This seems like an absurd question, but here it goes. I’m tapering for the Tucson marathon, my fourth. I ran a 38:45 10k a few weeks ago, and have a 1:27 half PR and a 3:15 marathon PR, though I feel in shape to beat that. This is my first marathon cycle with Pfitz. I followed the 18/70 plan almost to a T, and felt great for almost the whole block. But now that I’m finishing my first week of the three week taper, I’m realizing that I usually cut my mileage more aggressively than this. I was supposed to do a 17 mile LR today (did 16) but normally I’m doing 12-13 at this point. Next week I’ve got 13, but I normally will do like, 8 max the week before. I’m definitely recovering, so I’m wondering—should I just trust this plan since it’s been working for me the whole cycle? Or should I taper more aggressively. I feel like most pfitz taper questions are about the taper being too aggressive. Lol.

For reference, my 3:15 marathon was Eugene last April. I felt good most of the race, but I think I was really in shape for something closer to a 3:10. It’s possible I over tapered for that.