Psilohuasca is awesome, and imo/ime, it's better than mushrooms on their own, i get more out of them that way. I haven't ventured too far into the Psilocin realms yet, i'm by far more experienced with Harmalas and DMT, but, i've had a good sized handful of mushroom experiences, as well as Psilohuasca experiences (using mushrooms or 4-ACO-DMT), as well as 4-ACO-DMT experiences, and i've definitely gotten more out of Psilocin in the form of Psilohuasca, i mean on their own, mushrooms or 4-ACO-DMT can be good stuff no doubt, but i feel Psilohuasca has more potential, and is pretty freakin' cool that you can make such a powerful concoction like Psilohuasca, or use mushrooms on their own as-is.
I haven't ventured into Kilindi territory lol (maybe one day though), but i will say that Psilohuasca is very powerful stuff, not only due to the potentation of the Psilocin in dosage and duration, but also because of the change in the character/nature of the experience, it becomes way more Huasca-like, where the Harmalas/Huasca is the primary element. I've often wondered what Kilindi would think about Psilohuasca, i asked him once on facebook and he pretty much sounded like he didn't want or need the Huasca, but while i'm sure the realms he was traversing were a whole other level compared to what most people are used to and i hope one day to see that for myself, i think he was a bit quick to dismiss the potential of Psilohuasca, which is a shame because i'd be quite curious as to how much things would've changed up for him compared to his normal territory.
Also, proper Psilohuasca depends on timing ime, just like Aya does, so you want to pre-dose the Harmalas about 30 to 45 minutes to an hour before the mushrooms, although ime, i would say it's preferable to pre-dose the Harmalas an hour before the mushrooms, and to make the mushrooms into a mushroom tea, consume the tea an hour into the Harmalas, and so long as MAO-A is inhibited and the Psilocin is properly potentiated, it will be stronger, and longer in duration. The duration can be up to 9 to 12 hours, some people report longer durations such as 14 to 24 hours, but those longer durations i'm not too sure about because i can only go by my own experience, but based on my own experience and the overall general consensus, the duration is typically/generally about 9 to 12 hours, but can be less or normal duration for mushrooms if proper potentiation is not achieved.
Make no mistake, not that Psilohuasca is some hardcore serious shit that should be treaded carefully, quite the contrary, ime it seems to treat me gentler and looser compared to Aya/oral DMT, and i think it's more visual for me than Aya/oral DMT. But, that is not to say it's any less powerful, less intense yes (ime) but less powerful, no way, it's just as powerful (again, ime). The thing to keep in mind is, do NOT underestimate the power of Rue (or Caapi for that matter, but especially Rue), Rue is a pretty strong plant, especially with the addition of a Psychedelic component. With that said, i love Rue, i've consumed it regularly in high to heavy dosages since 2012, i know it pretty well, and while it can certainly be rough, it's one of the most amazing plants i've ever come across, and it has A LOT of potential, if you feel called to work with it and learn it's ways.
As for dosage, if you really wanna see what Psilohuasca is like, focus primarily on the Harmalas, so i'd say 3 to 4.5 grams of Rue, preferably 4 to 4.5 grams which for me is a strong dose, i like and do sometimes prefer a more moderate dosage, so say 3 to 3.5 grams, but 4 to 4.5 grams of Rue is ime where the Huasca magic really begins, but do feel free to explore the dosage of the Rue, 2 grams to 4.5 to 5 grams tops, shouldn't need to go over 5 grams of Rue, if you want stronger Harmala content you can consume the same dosage (say 3 to 5 grams) a few times a week or even daily if you want to, and a reverse tolerance will build up which will cause the Harmala content to get stronger and stronger, but also over time will get cleaner and the side-effects (nausea, vomiting, bodyload) will clean up/go away, allowing you to work with heavy Harmala dosages, or even heavy Rue dosages, much more comfortably and functionably. Although i will say, so far, my best Psilohuasca experience to date was using 2.5 grams of Rue, which most certainly changed the whole nature of the Psilocin experience to be more DMT-ish and Huasca-like, but while that is pretty cool, it's worth keeping in mind that higher/heavier dosages of Harmalas also hold a lot of potential not easily seen/experienced/felt/understood with lower dosages, so it's worth imo experimenting around with Rue dosage.
For mushroom dosage, since you seem to be pretty experienced in the ways of the mushroom (up to 24 grams), i would say at the very least, maybe cut the dose in half, so 12 grams, 14 grams max, although personally, just in case, i'd recommend going for 7 to 10 grams. Make no mistake, the potentiation by the Harmalas is no joke, even if you can handle yourself at 24 grams of mushrooms, you definitely wanna start out with a few test doses, just to make sure. Definitely, do not right off the bat mix Rue in and take 30 grams of mushrooms, that imo would be a bad idea, mmkay? Just remember that Psilohuasca is not a mushroom trip, it's an "Ayahuasca" experience, really different than straight mushrooms. Also keep in mind that the more Harmalas/Rue you use, especially with proper potentiation of the Psilocin by the MAO-A inhibition, the less Psilocin you will need for a full dose, whereas the less Harmalas you use, the more Psilocin you could need. So my advice, go big on the Harmalas, and a bit light on the Psilocin and work your way up. Psilohuasca is a completely different substance/medicine/experience compared to straight mushrooms, so just make sure you approach it as it's own thing, and not as the mushrooms.