I have a 2012 airport express that provides steady but weak signal throughout my house. If I connect a time capsule to my Mac (will be used for time machine), can this wirelessly "piggy-back" off the airport express and extend the range/strength of the wireless signal? Will the time capsule (802.11ac) speed be limited to that of the airport express (802.11n)? On a side note, is the time capsule fairly drop/knock-over proof? I read it has self-parking hard drive heads. I lost a hide drive that was knocked over and I don't want that to happen with the relatively expensive time capsule.