I got my lens back from Tamron. Much better! I haven't had time to do the full round of comparisons to the previous pictures, but I wanted to get something uploaded to show you guys. I did a few this morning at the same time of day as the others. I couldn't exactly replicate the lighting because the leaves have fallen off the trees now. But the shots I did this morning had no blown highlights. I can definitely see the difference in all areas. Here are just a few for comparison. Now I have to start practicing with this lens before next weekend!
The first two are before repair:
After repair.