Quote ="SFW"Is it not combining ephedrine with caffeine and aspirin (ie stackers or T5's) that are illegal? Everyone I speak to tells me that they give you a massive energy boost, sound ideal for just before a game tbh.'"
ECA stacks yes.
However, the Ephedrine content in such stacks differ in vast quantities.
Some people do make their own stacks by taking tablets of each individual substance that are in ECA stacks.
Ephedrine tolerance isn't something that is universal though. Some people get a lot from it, others dont get an awful lot from it, obviously dose dependant.