Hey FMB. I just bought a Medicali four tree perc last night. This morning, I awake, session it up right quickly with some bubble. Then I go to change the water, remove the down stem.. BOOM. A solid little chip right on the left side of the joint. A little later on, I go to remove the down stem.. BOOM. Another solid chip on the left side of the joint. I mean other than this joint chip drama I'm enjoying the hell out of my new tube but I was curious to see what you guys all think, have heard, and experianced with Medicali.