I've just recently taken away my 3 yr old BP's second hide on the cool side. He's in a custom black boaphile cage, and he started to flip the cool side hide over and wrap himself around it. Now that I've removed it, he seems to enjoy sprawling out on the cool side. After feeding, he always goes into the warm hide. When he was a baby, he loved both hides. Once he hit 3.5ft, he started flipping the second one (even though both hides are identical in shape and size). So, it just depends on the snake and it's surroundings.