Dosage advice (Amphetamine Sulphate)

[TheBinaryDimension]

Hi guys.

I have come into a small amount of speed from the SR.
I have had serious problems trying to gauge how much I should take.

First I'll give you a little background;
I am a 19 year old male of (reasonably) good health (For a stoner).
I weigh bang on 65.5 kg and have a fair amount of experience with a number of different narcotics from all classifications (Stimulants, Depressants, psychs...') so I'm not too worried about losing my head.
I have been prescribed Ritalin for my ADHD and have taken it pretty much every day since I was 8. (I mention this as I know it has cross tolerance with some stims)
I've tried coke once or twice and I've done so much MDMA I'm literally immune to the stuff and have given up on trying to regain the magic, even with T-breaks from ritalin in case that was a factor.

But anyway that's enough waffle about myself.

The vendor is pretty reputable and judging by the way the package was assembled this guy seems fairly smart.
I spoke the the vendor through private messaging and he claims the stuff is 60-70% pure Amphetamine Sulphate.
From what I can tell through research online this stuff is of decent quality.
White powder that forms clumps and is quite dry with a faint 'citrus cleaner' smell.
I asked him for his advised dose and he says 100 - 150mg for a first time. I haven't had any experience with speed, other than when other things may have been cut with it. Now I'm sure that won't kill me given my track record but from what I've read this seems a little excessive?

Anyone able to suggest a good dose?
Could this be MDVP or some shit like that?

my friend is also wanting to try some but she is smaller and far less experienced than me, I estimate 55 +/- 3kg.
A ballpark dose for her would be nice too.

I appreciate it's different for everyone and we should start small so I don't need that lecture but anyone with some knowledge would be appreciated

 

[TheBinaryDimension]

Bump

 

[_DankOpiAmp_]

Seems hella shady, do you have any scales? You won't even know the dose anyway so asking seems futile. Just do a small line or bump and see what happens. Make sure you give it time to kick in before doing more though.

 

[TheBinaryDimension]

Seems hella shady, do you have any scales? You won't even know the dose anyway so asking seems futile. Just do a small line or bump and see what happens. Make sure you give it time to kick in before doing more though.

Yeah, they measure to a precision of 0.01g.
Thing is the reviews are all pretty good for this guy and his packaging was the most professional I've seen...
The vendor seems pretty legit but the dose seems ridiculous. Also I did an allergy test and I'm not dead so it's (probably) not poison...

 

[Crashing]

I would just treat it like adderall man. High dosages are often recommended with amps but i find it very unnecessary. Many people claim a great starting dose for meth is 100mg, but imo that is way too high.

 

[tunesey]

The best speed in the UK smells like cat piss or similar to it and is usually damp to a wet and if you have enough of it you wouldn't need a sniffer dog to smell it. I once walked through town with an ounce in my pocket and I could smell it and thought everybody else could also. Or maybe I was just paranoid

 

[TheBinaryDimension]

The best speed in the UK smells like cat piss or similar to it and is usually damp to a wet and if you have enough of it you wouldn't need a sniffer dog to smell it. I once walked through town with an ounce in my pocket and I could smell it and thought everybody else could also. Or maybe I was just paranoid

Hmmm.... yeah that's a better description of the smell and yeah it's very slightly damp but does crumble if rubbed between the fingertips. You can't really smell it from that far away though but you can smell it through the baggy so to speak.

 

[_DankOpiAmp_]

If the purity is just a rough estimated range than their measurement is meaningless.