PT 68 is a difficult LG ... opinion, PT 68 should be along side PT C, PT 57 and PT 27 ... of easier games: for example PT 36, with the hardest game ... : I have not looked at PT81's games), you will also ...
What about a couple of RC tutoring sessions. Maybe that can shave off some points from the section that (aside from the outlier of PT81) is giving you by far the most trouble.
I took PT 69 yesterday with 2 hours of sleep and absolutely bombed. Gonna blind review then take 2 more in the 70's and do a retake of PT81 on the week of.
PT81 is hard. I took it today and got completely wrecked, shake it off.
You may be burnt out tbh, take like 2 days off and then get back into it. I wouldn't postpone, it seems like you're more than capable of getting that high score.
There's no set rule, at least in more recent PTs. For example, in PT81, the second passage was hardest, and the first passage was probably the second hardest.
I also learned from doing PT81 to never take any section ... I was really thrown by PT81 RC as a result (but ... , was the best on that PT) I think for each test ...
Interesting, PT 80's LR felt harder to me than PT 79's by a lot. I would say I felt PT81 was closer to PT 79 than 80. I think it's all just kind of personal preference, and what clicks for us.