Yea, the UK "BL" version was awesome. At one time it was legal here in Canada and could order it anytime. Took 5 days to ship. Every weekend was like Christmas. lol Man, the party days were fun. Now just getting old and being more responsible = boring. 
It was fun..however, the first day 1ml worked fine, the 3rd day you need 1.75ml's...After the third month, you needed about 15ml's, 25ml's, 45ml's...
Right before i stopped using GHB/GBL completely, i was using like 40, 42, 49ml;s at a single sitting....I would wake up with my teeth biting- down on my tongue