Ok so i finally was able to trip on some mescaline derived from San Pedro. Here are the details of the trip and preperation:
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Materials: san pedro cactus from sanpedroman.com, a blender, wooden spoon, tupperwear, a tshirt,4 gallon pot, water stove, cups
Dose - 24 inches of San Pedro cactus in 2 12in cuttings. im told this is a pretty heavy dose but my tolerance for mushrooms, lsd, and lsa made me pretty confident in my ability to handle the trip. also i was also told most people dont trip because they didnt take enough
duration: 8-9 hours
preperation: (total time about 6 hours)
1. we cut the cactus up in star shaped peices and then further diced those down to about 1in chunks.
2. We filled 2 identical containers, one with the cactus, one with an equal amount of water. We did about 3 blender loads and got it to a frothy green liquid.
3. we put it in the pot and on low heat for about an hour and a half. the first 30-45 minutes the cactus seperated from the water, and then the second 45 minutes it began to remix as we stirred. we stirred every 5 minutes.
4. for the next 2 hours or so it went from a frothy green to a green/brown mix and thickened up considerably. at this point you can still see the water seperate from the pulpy cactus. here we turned the heat up to a slight boil
5. after the last 2 hours it boiled down a bit, but never got glue as the erowid guide said. It was just a green mixture with alot of pulp.
6. here we thought it had boiled down enough so we used a tshirt to strain it into a blender. we poured it all down into the tshirt and then tied the shirt tight and hung it over the stove to let it drain.

7. it took about 15 minutes for it to cool down enough to grab it and squeeze the remaining shit out. what was left looked like this:

8 .We now had a blender full of green, mescaline filled cactus juice!

9. We attempted to drink it as is but it taste something like goat cock. (actaully it was thick, warm, planty, and foul! at first it was a bitter bitter planty taste, then immediatly turns into this extremely bitter taste, much like chewing a percocet or tylenol. but worse. and warm. and planty.)
10. Since i was the only one tripping i had to drink this shit down. after attempting to pound down a cup of it i puked violently. it didnt even have time to settle before it came up. there was no way i was gonna be able to drink all of this stuff.
11. the only way to fix it was to boil it down further. we put it back in the pot and boiled for roughly another hour. WE were able to get it down to about 8 ounces in 2 different 4 ounce cups.

12 . This further boiled stuff was even worse. it was the most foul thing i have ever put in my mouth. it took me about an hour to fully consume it all. The good news was i was feeling it after finishing one cup and moving onto the second. i cannot stress enough how awful this shit is. even tho the trip was arguably my 3rd favorite trip (lsd, salvia, mescaline in that order) i dont know if i would go thru this process again. it took half a day and i felt like asshole because of how nauseus i became.
Trip:
Heres the good part. Already it was beginning to kick in. it felt kinda like a perc almost in that my body felt wonderful. just an absolutely amazing. slowly my vision began to change. everythign was more colorful and vibrant. leaves of trees were blending together in odd little patterns.
The best part of the trip however was music. I very much so dislike rap and hip hop, but for whatever reason when my buddy put on wutang clan i couldnt get enough. i just sat there and closed my eyes and watched the music. yes i said that right. my closed eyes was the reverberating tones of the beat. when my buddy for whatever reason mentioned the rock (teh wrestler) his image kept going in and out of my vision. Then they put on chemical brothers and i just zoned out for an hour.
so its been about 2 hours now, and i cannot stand being in the house anymore. my buddy finds it funny when i trip so he offered to drive me around the city. We get in his van and start to drive. on the radio was a Police marathon so i closed my eyes to a song about walking on the moon or something like that. He takes a sharp turn and it feels completely weightless. i open my eyes and hold on, cus now it feels as tho im on a rollercoaster. my stomach was up in my throat. i had to tell him to pull over a couple times because it was too intense.
The rest of the day was pretty much like that but after the first 4 hours it settled down and most of the visuals died down, but i was still pretty high. THat night a reggae/alternative band was playing on landsdowne street so i decided to go see them play. The set was jsut incredible. Halfway thru i was standing in the middle of the floor cus the club wasnt that full. I closed my eyes and all i could see was white, like on the mac vs. pc commercials. The AC in the building was hooked to a fan so there was a cool breeze on my back. All i could feel was the music around me, i had no sense whatsoever of the people around me. It was as tho i was alone and could jsut put my arms out and spin. (altho good thing i didnt). it was the best experience at a concert i have ever had.
All in all it was a fantastic trip. only trip ive had better was my first lsd trip. Only problem was the time to prepar it all, and how godawful it was to consume. I doubt i would do it very often. Perhaps if i boiled it down to a shot or so worth it may be alittle better.
Without a doubt i recomend this. it was certainly an experience. Just be prepared for just how awful it tastes and how messy it is. cleaning the materials and stuff was a pain as well. Also the house smelled like pumpkins for whatever reason. It was alot of fun and jsut very cool thing to do. It was a long ass process and a long ass trip. If your into this stuff at all you should definitly go for mescaline.
~Blu