I highly recommend @DDave's mods specifically the 18mm VaporCooler for anyone looking for a delicious solution to harsh vapor. I was having some initial issues with harshness due to my asthma when I first got my Milaana. If I wasn't careful I was taking much bigger hits than I needed before I realized it because Milaana is so powerful and I'm inexperienced with her.. So I started using it through water, which helped, but I just didn't enjoy it as much. I missed the flavour I was getting from the straight stems and the direct "dance" of coaxing clouds out of my Milaana. DDave's 18 mm VaporCooler has been the perfect addition to my Milaana and solved all my problems.
Not only does it cool the vapour, it also acts as a filter blocking any little particles from getting through your screen! Didn't realize how much that was until I saw how much was building up in the cooler.. It's a more restrictive airpath as well, so I find it a lot easier to get the kind of hits I want without straining my lungs to keep up the airflow over multiple sessions.
DDave also hooked me up with 2 smaller tapered stems because I clumsily broke 2 in my first days of ownership. One is 14mm for microdosing with a 18mm-14mm reducer bushing so it can be used in the Milaana, and one 18mm tapered short stem. I love this 18 mm short stem, so much. It uses those nice preformed dome screens so cleaning is a breeze, and it rotates very freely in my heat chamber so I can remove it easily or get even extraction mid draw if I feel it's necessary.. and its tapered so I can get a nice smooth draw from it with good suction; it's just perfect, exactly what I needed. Will definitely be a return customer for my future stem needs!