Those Running 3.73 And a TF w/ LockUp.. What's your highway Driving Like?

I've run 24.5" diameter w 3.91 rear and highway driving was "not fun". Rev'd up to 3000 rpm+ at 55 mph, noisy, too much engine braking, can't hear anybody talking, has bad milage. Makes you not want to take the car any distance that requires interstate or even 55 mph back roads.
Recently switched to 28" diameter tires and added a Gear Venders w same 3.91. Cruising at 55 MPH is better in 3rd but your starting to feel like it needs another gear. Activating the OD brings the rpm down to about 2200 and it makes the ride much more enjoyable. That combo is supposed to give a final ratio of about 3.05 but the convertor will slip a little. With this setup, I can take it on the highway and run 60- 70 and it is tolerable for long drives.