TCI was pretty tough. (Tournament Club of Iowa), butTiffany Greens in KC, MO was a bear from the tips.
Easiest was probably Lakeside Hills in Olathe, KS. It closed about 5 or 6 years ago, but I was shooting low to mid 90s there when I couldn't break 100 anywhere else.
Tiffany Greens, Creekmor, and Dubbs Dread are some of the toughest in KC for me.