You understand he wrote the book, but do you really understand the program?
One of the four principals is slow progression, and you seem to be quite ancy. You're placing too much value in the training max, when it is as stated above; a tool. TM =/= strength! Taking your TM down isn't surrendering your hard earned work, it's allowing you to recover, set rep PRs, perfect your form, and get a running start into progressively higher weights.