I'm wanting to recommend my Curly Hair to give him more space. My boy is very very nervous of human activity, so I want to make this as least stressful for him as possible. I'm considering adapting the cardboard and cup method- instead of a cup there would be an opening to a hamster tube. The other end of the tube would be connected to the new enclosure. Has anyone tried a "bridge" method like this before? Any tips?