Smoking - crack inhalation

[fletch]

just curious, recently reading through some threads about smoking crystal meth and came across the point about holding your hit in for 3-4 seconds no more no less basically because the hit recrystalizes. i was just wondering if this is somewhat true of crack. swim always holds the hit in until begining to feel the high then a little more before exhaling, however not very much ever escapes the lungs. anyone else know if holding the hit in to long is asking for trouble. swim is not a crack head so doesn't use that often, but does enjoy it and swim is not constantly around those who smoke it. just kind of curious, moreso to be on the safe side of things.