So here’s an update for everyone. I did a highway run today, before and after the timing belt change and the noise seems to go away if I change lanes or go around a sweeping curve in either direction. I’m leaning towards tires. I hope to have them all balanced and rotated tomorrow. I’ll check the exhaust near the muffler. The car runs and drives like a dream, it’s just this damn noise! Would like to square it away before my Switzerland trip this summer.