Snooker: I at one point ran two pairs of cables (for bi-amping) across the threshold of a door that has heavy traffic. We have plaster/cement floors with acrylic carpeting covered by rugs. I built a channel box out of wood and brass screws and routed out a space in the plaster/cement to house the channel box (the carpet and rugs went over this). If I had wooden floors with space below them, I would have just drilled holes to run the cable underneath the floor. We rent and I did not feel that this was a big deal because I can always fill in the sub floor (which I will be doing soon because my setup is about to change). That said, I had considered Analysis Plus oval cable before I tried this other setup with Kimber Kable. I felt that walking on cable was just asking for trouble, plus cable, IMO, should not be touching synthetic materials as used in most carpet pad and carpet. If you do not have wood floors, perhaps just a shallow channel would work.