I must admit that I don't like being the first trying those kind of things. But I am currently making a list of the laptop I am interested in for eGPU using the list you made to know the ones which are compatible. The latitude was just one of those but a very attractive one for me. So if I understand correctly, if the laptop already has an internal GPU but an nvidia one like the Dell precision serie and the Lenovo W serie, it shouldn't be an issue right? I could also check if the ATI GPU can be manually removed from the laptop but I doubt it.