For $EJ/EC \lesssim 20$ we need to start worrying about the charge noise seen by the transmon ( if we can even call it that). This will be an issue for symmetric transmons near fmin. It will be nice to allow parameterization with respect to the charge noise $n_g$ of a transmon. And have that come into effect for symmetric transmons when they are biased close to their fmin.
For$EJ/EC \lesssim 20$ we need to start worrying about the charge noise seen by the transmon ( if we can even call it that). This will be an issue for symmetric transmons near fmin. It will be nice to allow parameterization with respect to the charge noise $n_g$ of a transmon. And have that come into effect for symmetric transmons when they are biased close to their fmin.