I was just going to reply that is probably what happened. As an engineer of sorts myself, we tend to come up with a solution that management won't approve the time, $$ and resources for, so you are left with something that will later take more time, $ and resources to correct or "upgrade". If you remember this was a somewhat publicitized issue with the shuttle. Hopefully if they rebuild, it will be done rightl but then again who knows what the future holds - if we build it for a cat 5 and then something we never dreamed of occurs like that movie cat 7??