So i ended up with the STT Pro. Overall very happy with them. They drive great on the hiway which was one of my worries. They are louder than i thought. Have more hum than my clapped out KOs. That surprised my. But that being said it is not loud enough to bother me at all even at 75mph. Just that it is noticeable with the radio turned off. Honestly they are not bad at all. I am more than happy with the noise. Nothing that requires talking louder or even turning up the radio.
One strange thing is the hum has a vibration quality to it like something is not round or balanced well. But no vibration at all. I even had her up to about 80-85. Felt a little light but super smooth. They did an alignment but forgot to give me the print out. I would like to see what my specs are. Caster SHOULD be good, maybe they added a little more toe out than i like. That is a easy fix. My brake rotors only have about 40,000 on them, OEM. But i have felt a little vibration in them coming down off big mountain passes. So i will replace them soon. Maybe i am picking up a little vibe from something there. In the past i had a slight vib while driving, no brakes. Some how it went away when i installed these rotors. Strange things some times cause slight intermittent vibrations.
Have not had them off road except in the back yard dragging landscape rocks. But the voids are big and i predict they will do well. If i end up getting OK mileage out of them i will be sold.
I have strange requirements for tires. Day to day very short driving around town 7 mile commute. I dont care about nose and stuff then. But then i drive cross country twice a year. Still dont care about noise. But i need it to be vibration free and safe feeling at 65-75 MPH. Long days and driver fatigue can be dangerous if things handle funny.