Thanks a lot guys.
Swim has been wanting to do this for awhile and has finally decided to get around to doing it. If powder isn't available, dried chips would be fine.
The main concern of swim is going through all the trouble and not getting any results due to the cactus not being potent enough. This is especially a concern as swim's friend might be paying for his own cactus and swim wouldn't want to waste their money/disappoint them. To avoid such a problem, what weight (dry) would be recommended (a potentially strong dose would be much prefered to a fairly inactive dose)? Also, would Peruvian be preferably to San Pedro?
Swim has read other read other recommendations for dried weight, but the more ideas the better.
There seems to be a lot of conflicting data on which is more potent Peruvian or San Pedro. It seems that San Pedro has a higher potential for potency, but which is more potent on average? Of course the average potency wouldn't matter with a reliable (for potency) vendor.
Thanks again