Since i never smoked crystal (and therefore have no such pipe), i have no clue what you guys are talking about.
But what you wrote is enough that i'm going to try now!! *joking*
But i like to hit my bong "art-fully": At first i go veeeeeery slow, and it's essential to seal up the top completely airtight, it doesn't work if you have a beard; i let the smoke build up like milk, perfectly opaque, perfectly serene, it's a true Zen moment
, and then when this beautifully dense milky pillar reaches my mouth, i stop and exhale deeply through my nose without disturbing the tranquility of the smoke, it just hangs in there, waiting; THEN i pull the chillum (you guys in the US call it downstem i believe) and rip it like a maniac!, and this body of milk hurtles into me like a train into a tunnel with 200km/h; it's truely fascinating! And if there is still something left in the head, i'll stop and do it a second time in one go, cause this way there is still lung capacity left to do so, cause of the midway exhale.
Cheers