That’s a whole bunch of threads about combos. Don’t know if I should be happy you keep topics separated or unhappy you started so many conversations at the same time.
Consider that when combining things like RICH and Mogul it’s about idea generation. Mogul’s wealth generating ideas may be more effective in a slightly longer term, but the beliefs and changes it generates will start working right away and may complement RICH quite well. As long as the general goals of the combined subs complement each other, even something like EoG could offer short-term ideas to complement RICH. This concept is likely why Emperor and Stark can complement each other.
When looking at frequent recommendations for combos you could also consider when they were made. Before ZP arrived, RICH was an Ultima. Ultimas were boosters and state-changers, to support Q subs. Their effects would stick if run often enough, but generally people would combine Ultimas with Q subs.
Now with ZP the subs have the ability to act as fast as Ultima could and so we are left with only ZP. But the past is where many of those combos come from.
When looking for quick results, look for the “small” subs. Subs with a very focused goal. LIke Mogul, Ascension, Primal, Iron Throne (PCC also works quite fast). Their scope is limited and so the results come faster. Basically it’s about the amount of stuff added, not necessarily if those are short, medium or long term ideas. The more unfamiliar stuff you add to your brain, the longer it will take to incorporate and start showing results.
It will always be a balancing act. Ascended Mogul for example proved to be only slightly slower than either of those subs on their own but a lot faster than those two run back to back. A custom sub with 10 modules is usually faster than one with 20 modules. And a well-made custom sub in general is most likely to be fast-acting.
The mysterious action-taking also helps a lot. Running Iron Throne during the COVID lockdown had very few short-term results and we can’t say for certain how many long-term ones. But running Wanted during the lockdowns seemed to have lots of fast results, likely because it does a lot of internal work which is better done without distractions. People running Wanted during the lockdowns may now add Iron Throne to make a very effective internal/external combination.
Which is another consideration of course. Some combinations are more effective if you’ve already been running one half of the combination on its own.
There is no single right answer. For what I think would be good as well as fast acting, looking at all the recommendations above, I like RICH & Mogul (while learning about money or at least doing your finances and annual budget), Wanted & Libertine (when going out at least for lunch to be around strangers without trying to pick up anybody, getting enough sleep and having a calming ritual, be this meditation, sports, reading, anything to quiet the voice in your head) and Diamond ans Sex Mastery (I think it’s easy enough to guess which supporting activities to do here).
Now to address a few things in this thread:
This is an important concept. Subs should have at least similar goals to work well together.
And bonus points for the word “justificate” 
It has been stated by Saint that you shouldn’t run completely different subs together but instead focus on, well, focus. Same goes for customs.
Running subs which do completely different things together in a stack would be similar to multi-tasking. If you do 10 things back to back, you’ll be finished faster as compared to doing them all simultaneously. The same principle applies here to your subconscious processing.
Although with ZP there is some merit to the idea of alternating between subs which have only slightly similar goals. For example, running a fitness sub like Spartan or Emperor Fitness on workout days and a physical healing sub like Paragon on recovery days. Or alternating a seduction sub with a physical shifting sub if you believe physical appearance plays a part in attractiveness (not everybody does). Or alternating any sub with visualization/manifestation subs (ME, Ascension, Dreams).
With ZP, the alternating between subs may allow the brain to get a bit of relief from focusing exclusively on one thing. May slightly hinder short-term results but on the longer term, the return on investment is much higher when compared to running them each on their own for long periods. And I personally would rather have a massive return on investment than quick short-term results, considering it is my time that I am investing (an extremely valuable resource).
Just don’t run them on the same day.
Keep in mind, this is still a theory in progress. There is some evidence this alternating has benefits, but it’s not a solid recommendation yet. At least not as far as I know.
One of the most attractive qualities of a person (especially a male) is where they are on their own path, doing their own thing. Women traditionally don’t like a tame lion, they like the one they have to hunt and tame themselves.
So the laid-back quality is very effective there, which is the result of Wanted teaching the listener to accept their own value rather than have others determine their value.
When testing the Ultima version of Libertine people reported feeling that same laid-back vibe and have potential partners all notice them and come to them, seeking out the pleasure.
Taking that into account, both subs have a similar external expression and the added benefit of Libertine is that it adds that sexual aura that makes partners feel like they’re doing something taboo, adding a lot of excitement.
“I found the cure for cancer!”
“So, tell us!”
“Nope, don’t feel like sharing, just wanted to rub it in your faces. Sorry, not sorry.”
“…”
Well, technically you only stated they’d make for a great combo and weren’t rubbing it in, but after writing all the above I needed some comic relief for myself. Sorry.
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