I'm sorry if there is already a topic on this but I couldn't seem to find it. I have a typical ceramic bong right now and I want to upgrade to the scientific glass ones but I'm not sure what to look for. I'm not sure where I'm spending too much or if I'm supposed to buy in pieces or what. Does anyone have any tips on buying a nice bong? Lets assume cost is irrelevant.
A couple things I look for are an 18.8mm joint size (for less drag), a beaker bottom (for stability), thick glass, and a zong shape so I don't get water in my mouth. It's really all preference though.