Yeah, almost impossible indeed! Plus, I had two other issues : I lost a few millimeters on one side (no matter what) and I had do use my old laptop because the scan software wouldn't work on the win10 of my new computer (and there is no linux version, of course...).
I don't want to cut this in half, but the thought had crossed my mind. Well, I don't know what you did but it really work on Tiamis, I would never had guessed it was in two parts !