^ I only ever used shards/crystal/ice, never speed, at least in the last few years.
Well actually once I decided to try and cut down my habit and use 'speed' instead of shards, but I put a point in the crackie then thought fuck this and bought crystal instead, haha...
I used daily for most of the last couple of years, pretty steadily stayed on one point of 90%+ pure stuff a day (I washed my gear so I knew purity was high) which didn't really get me high at all, then on weekends or party days upto about half a gram, maybe 7 points a day, of the same very pure stuff, but at this level the adverse physical effects were outweighing the high, until my tolerance got so high that I just couldn't smoke enough anymore, without feeling like I was dying with a heart rate of 200+ beats a minute.
I used for about 7.5 years all up and each hit would just be as much as my lungs could hold, though generally to get high I would have to puff continously for 30mins-45mins, just chain puffing, then I could get to a level I could maintain with a puff or two every hour or so.
