Calton cases are my personal favourite. For their weight, they are extremely strong, and their padding is excellent. Still, no case is exempt from the hazards of an errant forklift. So no case will totally ensure your guitar against that sort of damage. Still, there are other hazards your instrument will face - ones which, fortunately, you can guard against.
Trouble is, in most cases the headstock is unsupported and is quite free to move.
These are simply fabric-coated foam wedges, one of which is placed below the headstock, the other placed atop it. When the case lid closes the foam compresses to support the headstock. Remember, what's important is to immobilize the headstock. That means equal pressure both above and below it. Dryness - Remember that abrupt changes in temperature and humidity are your guitar's worst enemies.