I gave up on trying to seat the screens in different positions because ultimately it's unnecessary. And a pain in the ass. I put all my screens in my Ti tips in the lowest/fullest position. It's quick and easy and they seat securely even if a bit old and worn. If I want to use less flower, I put less flower in, give it a light tamp and it'll work just as good as if it's full. Or if you want light/tasty tokes you can put a tiny nug and let it rattle around in there over the course of a few heating cycles.