So I've attempted this tek myself.
I used xylene, as I can't get d-limo. Because of that, I actually built a fume hood using a centrifugal blower, a carbon filter and a large transparent plastic container. I hanged the carbon filter on the inside and drilled a hole through which I connected the ducting from the carbon filter to the blower on the outside. I drilled two more holes to put my hands through, and, voila, the ultimate fume-hood. Nothing can escape it - the hand-holes strongly pull air in. The output is as fresh as the prince of Bel-Air, so I never really had to smell that horrible xylene.
I used about 10 feet of peruvianus and another 10 feet of pachanoi (pedro). I only had three ~3 liter glass containers. I reduced the peruvians to fit in two of them, and the pedros to fit in one, since the peruvianus is much fatter. I based the shit out of the teas, putting around 250-400 grams in each of the containers. I was weighing the lye at first, but soon gave that up, as that stuff, being in powder form, is a nightmare to work with. It just gets everywhere. So I eye-balled it.
Now I put a 200 ml of xylene into each container. The peruvian teas separated just fine, but the pedro did not! I got the very same phenomenon Ekstasis, who also used san pedro, described earlier in this thread: a black layer at the bottom, a thick emulsion layer, and an insignificant thin layer of xylene. I tried adding more base to no avail. I didn't really measured, but I probably put around 500-700 grams of lye in the pedro container. I also added 200 ml more xylene, which just made the emulsion layer thicker. So I'm thinking maybe san pedro cacti have an inherent problem with this tek. Could it be so?
Moving on, the peruvian torches, while behaving as expected, yielded insultingly small results: only about a 1-1.5 gram of dirty sanchez.
I also couldn't properly wash it. The acetone did wash away some brown, but after a few washes it became apparent that I was left with light brown material that wouldn't be washed any further - the acetone came out clear. I suspect this is because I tried to wash chunky crystals rather than powdering the sanchez beforehand, I didn't realize it was important.
These are my grim findings. I'll try again if I can find some bridgesii, I suppose it really is the proper way to go.