I haven't had a gurgle in a few years. I dry out the tobacco until it sounds like rustling grass in my fingers, and I don't draw hard enough that I ever agitate the moisture if it is there. I guess if the pipe is gurgling, slow your draw until the air flow is no longer agitating the moisture. That is how hard I draw on a pipe, regardless of whether I have gurgle or not. But like I said. Haven't had it in a couple of years.
Also, if the chamber is drilled a hair past the airway, leaving a little divet underneath the airway in the bowl, I wonder if the little moisture droplets would stay there and absorb. Just speculating.
Also, if the chamber is drilled a hair past the airway, leaving a little divet underneath the airway in the bowl, I wonder if the little moisture droplets would stay there and absorb. Just speculating.