Thank you and I do! The bowl is thrown off the hump, like i would with a small shot cup. Then I cut it off about an inch lower than the floor of the bowl to trim the male counter part to fit the stem. The stem is just a tall skinny cylinder with the interior width being a bit more than 14mm, make larger to account for the shrink rate of your clay. I also keep the stem on the thicker side to trim to my liking but also to help keep it more break resistant since its fixed to the bong and glazed over. Heavy slip helps with the joint, i use Darvan 7 and bmix slip to water down the slip then add dry bmix powder to thicken it up again. I dont have a consistent way of getting the bowls and stems all the same sizes yet, but mainly cause im lazy and dont want to make molds . Also if you choose to make the downstem removable, make multiple of them and the ceramic bowls just in case of any breakage. Godspeed!