So... I decided to see what effect I would get if I drilled the hole in the mouthpiece slightly bigger. To do this I simply stuck a small paper clip into the hole of the mouthpiece and pulled the endcap off. I then used a 5/64 drill bit to carefully bore out the hole. Here are the results:
Left: Newly bored hole Right: Standard hole
The draw is just a tad easier but produces much more vapor with less effort. The flavor is also much more evident since the vapor passes past your taste buds much more slowly. All in all this was a very easy mod and took me less than 2 minutes to complete, test, and take pictures. So, if you're after easier draw, more vapor, and more flavor... this might be for you.

Left: Newly bored hole Right: Standard hole
The draw is just a tad easier but produces much more vapor with less effort. The flavor is also much more evident since the vapor passes past your taste buds much more slowly. All in all this was a very easy mod and took me less than 2 minutes to complete, test, and take pictures. So, if you're after easier draw, more vapor, and more flavor... this might be for you.