So I just got my new to me uMBP 15" from the Apple Refurb store. Everything seems fine with it cosmetically and it's running fine. However When I pick it up and tilt it the lid is very loose and closes with no involvement from me. This is different than my previous uMB 13", the lid on that one was solid and never moved unless I wanted it to. Is this normal due to the bigger screen (i.e. more glass, heavier lid)? Or should I be contacting Apple for a replacement?