ahhh, so the problem then was dose being way to small. Basically, I need a 3ML syringe vs an Insulin syringe, correct?
What was your dose per shot, and how is the quality around where you live?
As for your syringe size; most speed users around here, including myself, use 5 ml syringes. I feel they are too large and would prefer 3 ml like you said, but the next size down is 2 ml and for me that's just a tad too small for comfort. 1 ml insulin syringes are not something I would consider a viable alternative for injecting street speed.
Pure amphetamine sulphate (maximum purity being ~80% IIRC due to synthesis byproducts) dissolves at a ratio of 1 part amphetamine in 8.8 parts water, meaning 1 gram of amphetamine will need 8.8 ml water in order to dissolve completely.
However, in street grade amphetamine that has a purity of 20% for example (which would be considered to be rather good speed by most users), the rest is made up of cuts, byproducts of synthesis, and leftover precursor chemicals. All those may have a higher or lower solubility than the amphetamine does, and so may require more or less water to dissolve. Keep in mind however that a completely clear solution is not necessarily a good or bad thing and may say little about purity of your speed.
A common rule of thumb where I live is to use 1 ml of water for each 100 mg (0.1 g) of speed. In my opinion that is excessive and unnecessary as it exceeds even pure amphetamine solubility and creates huge solutions (a commonly used 0.5 g shot would already be 5 ml, which would take a long time to inject and I just don't have patience for fucking around with bullshit considering it will result in a weaker rush and higher risk of missing part of the shot.
This is
my standard procedure which I use every day including right now when I am about to prepare a nice shot of some fresh speed I just got. It's from a batch that I consider to be of very good quality:
1) I weigh out 0.35 g for a good, moderately strong dose, as it has been close to 9 hours since my last one.
2) Add 2-2.5 ml of fresh cold water.
3) Stir it until it's all liquid and draw it up through a cotton and lower grade micron filter (Sterifilt 10 µm) into a 5 ml syringe.
4) Attach an orange 25G needle and shoot the clear solution quickly but steadily.
5) Breathe heavily and smile, probably saying "oh mama" as the rush hits me.
6) Clean works with my hands still shaking, smile again. Lastly I save the cotton filter I used for a rainy day flush. I do recommend you rrying my method,
except saving cottons. It's risky and can have negative consequences.
Good luck bro! Let me know if you need another huge wall of text or something!