t-dub
Vapor Sloth
Just reading the thread I found these:
As for vaporizing in the dark, try to use your hearing senses more in this case. You will notice that the whistling sound is not just caused by how hard you draw, but it also has to be quite centered in the opening of the intake stem to cause the sound.
One thing I would like to comment on about your review. The "WHISTLE SOUND" you mention. That whistle is indicating that the airflow has a lot of turbulence. From our research and experience, the turbulence is great for CONVECTION vaporizing. Turbulence agitates and scrubs the compounds to be vaporized. This equals more cloudy heavy hits.