For some time..Ive been using a small ..3 inch inner diamiter.. by 10 long water bong ..with mixed results...
Today I just tryed a very narrow [1/2 inch inner diameter]...glass test tube shaped pipe and 15 mgs hit me like it was 25 mgs!
The vapor looked very milky and thick..
This glass plpe is similar in size to the [glass VG]..which looks close to the same narrow inner diameter..and similar outer length..
Is this working better because it compresses the spice vapor in a narrow glass tube leaving little room for air in the hit?
Is this ..[thin glass test tube shaped pipe].. performing so well because it compresses more vapor in small channel whithout space robbing air to enter?
Could this be why the VG pipe works soo well?