MEM is like if you took the best MDA experience and mixed it with a lowish dose of 2C-B and AL-LAD. Then add that Mescaline physiological euphoria (minus the nausea) and that whole natural feel to it, add some gold, cream and redish hues to the visuals and voila! I'd read Shulgin's account of it for a more detailed TR though.
I think the ethyl makes a huge difference. For instance comparing 2C-D to 2C-E; 2C-E is in the magical half dozen and 2C-D is pharmacological tofu!
Though with the thio-PEAs it's a totally different story; 2C-T was /incredible/ whereas T-2 was uncomfortable, nauseous and even though I got through a gram of the stuff I'd never touch it again!!
Then we get to T-4 which was...average and T-7 which is a powerhouse!
The thio-PEAs are really unpredictable compared to plain carbon chained PEAs in general so when going in, expect everything!!
EDIT: Christ I forgot we were talking about mescaline analogues! Anyway the 4-position analogues on Mescaline, 2C-D, DOM, 2C-T, TMA and ALEPH usually follow similar rules to the basic one.
It's like LSD compared to LSM or LSP basically; that ethyl chain IME relates to the ethylamine chain opposite (on PEAs anyway) so the closer one gets to it the better (though I have a theory that if 2C-P were shorter it'd fly off the shelves!!) the compound will be. Perhaps 2C-EAL or 2C-MiP (2C-iB)?
For instance; MAL, 2-Et,4-M,5-MeO-PEA/A, 2C-T-2 (combo'd with something like Ondanestron), but not 4...which I find odd, are just magical (not sure about the second but I can't see why it wouldn't be!), ALEPH-2 of course is the crowning prince of the ALEPHs (according to Shulgin anyway, DOT is my favourite psych ever so imagine what DOT-2 would be like!!). Plus DOT-7 is also supposed to be incredible, possibly even moreso than 2.
DOET is also in my top 5 and it's just incredible. Sort of like DOM but with that 2C-E 'powerful' feeling, like you could do anything but 10x better than usual. Not to mention how everything feels like you're sober but flooded with visuals (this is 2C-E anyway; it's a very flat compound IMO -> /not/ a negative!!).
DOPr I never had a chance to try but that duration is frighteningly long so I never had an interest in acquiring it.
However having just reread Shulgin's experience of it again, I'd really like to give it a go. I mean he fell asleep on it and in that sleep his dreams were incredible! /Very/ strange for an /amphetamine!!/.
So switching to the three carbon chain analogues we have ALEPH-7 (as I said earlier; an incredible material I'd sell my mum for!!), 2C-P (which was fairly standard but held a lot more in the way of recreation than the ethyl counterpart), DOPr, 2C-T-7, ALEPH-7 (another powerhouse that sounds like it could be better than even the base compound) and MPM (judging by MEM I think this could blow it out of the water. Shulgin never released his notes on upper doses so there's a good chance it's something really quite special).
I've noticed there's a few that should be in PIHKAL and TIHKAL and even after reading the lab notes there isn't much on MPM or the others missed from the main tomes.
So; in conclusion, if we can get 2C-P down to an acceptable duration (altered ROA perhaps or maybe even beta-hydroxy-2C-P or 2C-(a-Me)iB), it would be a wonderful compound. The rest MMAL, MPM, 2C-P, 2C-T-7, ALEPH-7, 2C-EF (right?!), ALEPH-21, 2C-T-21, 2C-iB (iso-xx compounds seem to resign from this pattern, presumably due to in vivo reactions), HOT-7 and anything else with a propyl chain at 4 seem to be absolute winners.
So now what? Well, if 2C-EF and DOEF were so well received, why not 2C-EC or 2C-EBr? Just to test the waters I think 2C-MBr would be perfect and then we can discuss halogenated carbon chain compounds with a great deal more certainty on how they'll act. I'm envisioning 2C-T-EF (EDIT: I'm an idiot; this is T-21 and it is

absolutely fan-fuckin-tastic.
Personally I think that 2C-MF would be an absolute superstar but with the catch-all PEA ban we'll (as in the community) need to look further afield for producers.
I'll fire off a few emails tonight to see if it's possible in the near future but don't get your hopes up yet. We don't even know if they'll work, let alone if they're able to be mass produced due to analogue laws.
Thank you Leprechaun for giving me this idea for a new project and hopefully we'll see some novel PEAs in the future!!
/Cannot wait!!/
PS: Sorry for my thinking while writing style, I find it a lot easier for me to find the next part of writing the post this way, plus it shows you my mental process.
EDIT; Oh my god!! I just realised I still have about 80mg of the stuff left!! It must be about 4-7 years old but it'll still be perfect if I adjust the degradation to dose ratio. Fucking yes!!
PPS; I still haven't tried and would give my left nut to acquire; 2C-MF, 2C-EF, 2C-T-21, ALEPH-x (2, 4 & 7 specifically), BOED, 2C-CN, 2C-MAL, 2C-T-4, CPM, DESOXY, DOMF, DOEF, MMDA-2/3a, DMMDA-2, GANESHA, HOT-x, IM, MADAM-6, MDOH, MDAL, TM, MT2M, MEFM, MMFM, MAFM, 2-TOC, 2-TOM, 2-TOF, 5-TOET, 5-TOMF, 5-TOEF, 5-TOMAL, 2/4-TODMOSO, 4, 5-MDO-DiPT, 4, 5-MDO-2-Me(O)/Fl-DMT, 4-HO-5-MeO-D/MiP(/DM)T, 4,5,6-TMeO-(DM)T, 2-Me-DMT, 2,5,6-TMeO-a-Me-T, 5-Fl-aMT (I'm still holding out on that hope!!) and of course my novel psychedelic class (of which are hundreds of analogues to be tested).
Also a long shot but; 5-MeO-6-Me-DMT or 2,6-MeO-5-Me-(DM)T just to see whether there /is/ a crossover!
So cross fingers I manage to find a source before the RC days are well and truly over!
PS: Before mods delete this for off-topicness; I meant this to be found this way.