I've certainly described it before in a few threads but it's not on an official stickie or anything.
The thing is I have never done real PUPD because I used Karps 5s in the very early weeks, then Tracy's EASY and shush/pat mixed in with Karps 5s from there on out and DS was independently sleeping around 8 weeks or under. Of course he needed help through tricky phases but there was never anything I needed to use a real PUPD for. The time I used it was transition from hammock by my bed to his cot-bed in the adjoining room. 3 days of hell TBH, I slept in the room on the floor, and in the blasted cot, anything to help him feel my support...really he was an independent sleeper who was desperate to be asleep and furious that he was no comfortable (or safe as he had rolled) in his hammock yet didn't want the cot either, but then he was also an AP-refuser so it really was a case of neither of us having any choice but to just keep going.
Does Tracy not describe something similar in her book? I have a vague memory of something about this but I could be wrong of course.
DS was 9 months when I did this transition and this method of sort-of-PUPD, I believe the usual method is not to pick up at that age but DS *always* had to have a brief pick up if he was upset, PU, quick cuddle, back into bed, he didn't even want to be held long, in fact he'd kick off if I held him too long.