I also use a Brew Hauler with my better bottle. Works great. Just make sure you remove the airlock before you lift it. They flex quite a bit when you use the Brew Hauler, liquid will definately be sucked back.
Not if you use Better-Bottle's Dry-Trap airlock. It has a ball type check valve that slams shut and prevents suck back if the BB experiences a negative pressure due to cooling wort or deformation from picking it up.
