i made one tonight and i'd say it's just that the pressure is greater than a regular gravity bong. hence, more smoke, more burned buds.
HitokiriBlazer Reviewed by HitokiriBlazer on . Bubbling Gravity Bong I have one of these and it delivers solid hits. My question to anyone who has one is do they always eat weed quick? My GB seems to go to lunch on weed when I use the underwater bubbling. One smooth fucking hit though, especially when it's dank. Rating: 5