Thanks, the other questions were in taking a stem and adding your own material to it/inside it. Is it possible through softening it to a certain point and which stem material would be best to do it with?
Would splitting the main chamber into two smaller chambers, just for question example, half way down the stem effect the draw, and have an effect on cooling and spreading the smoke with the angle?
Does it make a difference to add "bands" to the stem?
Craig