Or can I do it in one go ie break open 3 amps and use the
one syringe. That seems OK but everyone harps on how
convenient it is that TTokkyo comes in 300mg dosage.
yea bud, like Zyg sais, do it all in once. Remember not to do more than 3cc's in one shot although some ppl still reckon the max is 4cc but personally I stick to 3cc (3ml's).
Its usually stated in mg per ml. If you have tt deca at 300mg, that means its 300mg in 1ml. If you just want to take 150mg, then you draw out 1/2 a ml. The higher concentrations allow for you to take higher doses without so much oil.