Even the worst warped rotors I have dealt with didn't cause what sounds like a loss of control. That's a big gulf to jump from a shake to get to a dangerous loss of control.

EBC still makes a good rotor and Rockauto had some slotted China ones that have been OK so far. The EBC can be a pain sometimes to get in, so ordering from RA might be easiest if you need to get it done soon. My wife is a brake component tester and if they can stand up to her, they can stand up to you. I promise.