I believe I lifted the expression "expensive speed" from you, by the way.
(On second thought, I'm not sure...memory's not what it used to be what with all the ecstasiez...)
perhaps, i don't recall either. same as you, i think all those ecstasiez are blowing holes in my brain lol. Ann Shulgin has a great paper that states the desired "peak times" of mdma' mechanism of serotonin release versus the less-desired dopamine release. i'll find a link and post it but i need to dig through erowid for it
one way to spread out the enjoyable serotonin release of mdma is to increase the alkalinity of your stomach. eating about 2g calcium carbonate (4 regular tums if i remember correctly) about 10 min's before dropping the roll caused the roll to last much longer. i didn't come up with this technique, it's plastered across the internet and decided to give it a go. i found that i needed more mdma than normal to reach where i wanted to be, ie: i had to take 200mg to achieve the same feeling that 150mg would provide. however i found the following to be true for me and my wife taking pure mdma hcl with a stomach full of 2g calcium carbonate (tums):
*it took longer to hit
*when it hit, it didn't hit like a freight train like it normally does it came on slow. it continued a slow onset for about an hour before a definite peak/plateau was noticed
*peaked for 6 hours (2 hours longer than just normal mdma hcl on an empty stomach, by itself)
*the comedown was verrrrrrry long and gentle. there was no sudden drop-off or "oh sh*t" moment like i normally get. it's at that point i feel a strong urge to redose and must fight off the urge, i didn't get that urge this time.
*sleep came very easy, drifted between eyes closed dreamworld and actual sleep at some point, woke up 2 hours later, eye still dilated and rolling. walking to the bathroom was still a bit more difficult than it should be. after 20 min's i was asleep again and slept for 6 hours or so
*woke up after those 6 hours, eyes slightly dilated, feel really good and rolly still. pretty much baseline but i'd say i felt more rolly and not so much an afterglow (by that i mean the feeling was stronger than a typical afterglow and i felt like i was partially still rolling, but sober enough to function somewhat)
*felt way more "wiped out" the day after than normal, we found it hard to leave the bed much that day but it was pleasant
not sure quite what to think of it but the whole experience was almost like time-release in a sense. it was enjoyable but i'd say for anyone wanting to try this to dose a bit higher than normal because of the slow absorption. not sure if i'll repeat it or not but it was interesting. dosing normally provided a stronger rush for sure, but i did like the super slow comedown here and not the harsh drop-off. i still prefer good old mdma hcl on an empty stomach but figured i'd throw this out there.