Oh interesting, you put it in the other way. I have the large thumbscrew on my Pinecil, so I put it in "backwards", i.e. with the screen facing the heat insert press's body. This is something that's come to annoy me pretty significantly though as I've used it, since the screen is then no longer facing the user and is hard to read during use 😂 I might modify this soon to put the thumbscrew slot in front so that the screen is also facing forward during use. However, as you know, installing the soldering iron holder for this heat insert press relatively involved, and well my laziness has so far outweighed my annoyance at this issue haha