I always used to do meth after alcohol. Always this silly idea of it taking the edge off, which i does, but the negatives are not worth the initial reduction in anxiety from your first few doses of the meth until you are comfortable with it.
Two bit problems with using meth and booze.
1. I always used to wonder why I would get crippling anxiety, panic attacks and serious SNS over stimulation when coming down after a decent but not insane 12 or 24 hour session. What i eventually figured out was that for some reason coming down from meth while at the same time experiencing a serious hangover from the booze the previous night would combine to cause a terrible paranoia near psychosis level comedown the next day, for me. Not really sure why but withdrawing from GABA and Dopamine etc at the same time is horrible.
I always assumed this was the usual meth comedown. Now when i use without drinking a ton or maybe 2-3 beers max when i start the meth session, my comedown the next day is always utterly magical in comparison. Basically all that happens is the meth effects stop and i feel tired and drained and no longer euphoric. Exactly how i would feel the next day without sleep as if i had not done any drugs before. Basically a return to baseline without any below baseline negative effects from coming down whatsoever. I have tested this many times and I am still blown away that it was always the alcohol or the hangover that created the hardcore meth comedown I had learned to accept as normal.
2. This point is mostly a big issue for me after having built up a little tolerance, that had me confused for months. Basically if using more often then then then 3 full days sober without using in between: I would always start of drinking and then hitting lines of meth and for some reason would find it very difficult to reach that certain point of stimulation desired from the substance, that special places i wanted to be with the correct level of body stimulation. It would take hours and a large amount before i got these and i could never understand why.
Only recently have i realized that when i suddenly reached the point where the drug did what it was supposed to do each of those times, it was basically when i had stopped drinking long enough for the alcohol to wear off. This never clicked for me, i always thought it was due to dose or simply that i needed to be high for a few hours before it got to where i wanted it to be. Never thought the alcohol was the issue. I suspected it but always thought the booze was helping or was necessary for some reason.
Turns out that with some tolerance and reasonable dosages, the booze really puts a damper on the really good tweaky positive effects one is looking for with meth, and as soon as i stopped drinking alot when using or only did 1-3 beers when starting and then stopped. the drug would do exactly what i wanted in a very short time and a much lower dose then i had to push it to when using even moderate amounts of alcohol with it.
Basically the lesson is that all round in every way, booze with meth is at least a major waste of the drug and dampener of the best effects and at worst causes major amplifications of the negative side effects, especially the next day when coming down from one or the other. And this is all separate from the fact that apparently the combo is much more harmful to you physically.
I would always insist on doing them together due to my anxiety issues and convincing myself i needed to take the edge off the meth in some way, but now i have realised this is absolutely unnecessary and the meth works perfectly alone, even better in fact, even for somebody who is more prone to get overly anxious from certain negative stim type effects and thinks they need to take the edge off or they will freak out.
Basically, dont combine them, there simply is no reason to do so.