There's some really great stuff here, Zoth! I'll deserves a very close careful study.
I'm just beginning to work on ADA/RC (continuous awareness of a particular RC) of location (including transitions) I think it will work well for me since in dreams I have a pretty good sense of being oriented in the dream-world (I can often draw an overhead map of my path through the dream and mark where certain events occurred). I want to work on this ADA/RC for at least a few months before trying anything else but your DIPE looks like something to try if ADA/RC doesn't work out. For now ADA/RC has taken the place of prospective memory exercises for what my mind's busy with "in the background" during the day. I still do regular physical/mental RCs, and Sageous-style RRCs, whenever anything unexpected/surprising/out-of-the-ordinary occurs, and also have an app prompting me every 20 minutes or so. I don't always get to respond to every notification (like when I'm in the gym), but I try to as much as possible.
It's time-consuming to choose and track progress of 10-12 prospective targets throughout the day. I know there's an android app for this but I want an iOS one. Haven't found one so far, so I may write one myself

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edit: I think a research thread is a great idea. Can you describe what sorts of results you've experienced yourself? What your lucid history is, your frequency before it, your frequency after it, and so on. It's probably better to use more experienced LDers for the study since with beginners it's hard to tell the difference between natural progression of increased frequency just by spending time on any LD practice, versus the gains from DIPE.
edit 2: one more thing. In LDing there is no one-size-fits-all. For some people, the "P" in DIPE may make sense. I do have some recurrent characters but they do not occur at the frequency I'd like to have in LDs. Much more reliable for me is location: I have a location that occurs almost every night it seems (although now that I'm focusing on it, it hasn't occurred in over a week, doh!).
So while displacement and emotions are probably applicable to everyone, People may not be. Everyone should choose those elements that are likely to make them lucid using careful reading of their dream journals.
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