^Yeah, but when you prep the crack for injection, you have to add an acid, and water, therefore creating a salt. So when you inject crack, you are not injecting cocaine freebase. If you use vinegar, it's going to be cocaine acetate, if you use citric acid it will be cocaine citrate. I don't know about the acetate, but someone once told me that the citrate salt has better bioavailability than the HCl salt (I think it was fairnymph who told me that, and I hold her word in pretty high reguard). Maybe that's why a IV shot of crack seems better than a shot of coke? IDK, I'm sure the fact that crack is generally more pure than street coke in the first place has something to do with it as well.