Ok, got Goodyear VIVA 2's from Walmart, had them inflate the tires to 40psi (all four). Not used to driving on higher than 35, so if you have a better recommendation for PSI (the cold max on these is 44) let me know.

Got the tires two days before going on a road trip from Columbus to St. Louis. Averaged 43.9-45.7 mpg the entire trip. Definitely a slight drop, but wasn't too bad. As the tires lose some of their outer crust and settle in it'll get better.