I can cross my eyes and make it fit, but it is pretty blurred and the combination of both pictures isn't very stable because I tend to suppress parts of what the left eye is seeing. So it isn't fixed and things tend to jump around. Those problems are exactly the reason why I think it's a great exercise and at this point it is something I can start considering without getting way ahead of myself and get totally frustrated. For me it is a pretty intense exercise but if done relaxed and well rested it is not too demanding, so I will keep at it. A fellow strabismic told me he had a stereo break through while practicing this kind of images, so who knows! To find more of them, Google 'cross-eyed 3D photography'.