As stated earlier, there are two big cat sanctuaries north of Dallas Fort Worth. First is InSync which you mentioned and other is Intl Exotic Animal Sanctuary, which I mentioned.
If you do decide to visit one of these, my vote is for the latter (IEAS) for the following reasons. Please note however that I have not visited either one and have no knowledge about how they are run or how their animals are treated.
1. They are AZA certified.
2. They have a cheetah.
3.They have a brown bear (same species as grizzly).
4.They have an Asian black bear (almost extinct in captivity in USA).