Currently if you export a GCP tagged ortho image and a DTM they will not line up correctly due to the DTM being exported into international foot. Many people might not even realize this is happening. It seems like a big mistake to have a GCP tagged image and a DTM export not match horizontaly. And it is a huge pain to fix in Autocad.
Eventually the USA will move to the international foot but it is not there yet.
So please give us the option to select international foot or US survey foot. It is critical to have this.