yeh, 1,4 definitely lasts longer, and its more intense, but the worst part is if you take too much, you are fucked for a very long time, vs real GHB when you take a little too much i can usually fight it off and never really go out like the 1,4. Best way with 1,4 i have found is mix it like this, 6 ounces 1,4 and 10 ounces water in a 16 ounce bottle, then 1 cap is good, two is great and three is too much. thats the best ratio i have found for it when using the "bottle cap" dosage