Yeah, a proper airfoil would absolutely perform better, and people use hot wire cutters on foam like this to produce airfoils [1][2], but that's more of an adva

Yeah, a proper airfoil would absolutely perform better, and people use hot wire cutters on foam like this to produce airfoils [1][2], but that's more of an advanced craft and not necessary for getting something which flies well. 1: https://www.youtube.com/watch?v=yIxyyTnT-hM 2: https://www.youtube.com/watch?v=JIRzQO4F8ck