Re: Well it is handmade...
Keep in mind the price at which you are buying. A handmade pipe of exacting precision would likely cost up into the $400-$500 range. When you buy a KM you're getting a handmade product for less than half of that, and yes, there are aesthetic flaws, but the quality is there where it counts, because they smoke like no other.
Fact is Khalil Mamoon produces hundreds, maybe thousands of pipes a month and all of them are functional, if flawed, works of art.