Well, not sure if the tires were out-of-alignment or out-of-balance, thought it was BOTH. Only once I felt some mid speed 40-50 mph vibration ( I thought I felt it) during initial test drive. Thinking it might have been tranny shudder, paid close attention on subsequent extended test drives, which I didn't feel any vibration at any speed. The transmission is shifting very smoothly now, even better with new tires. I did notice the tires were out of alignment, showing uneven wear, the reason why I replaced them at under 15,000 miles with 6/32 tread remaining.
Checked all alignment shops nearby, every single one is booked at least until a week after. I don't particularly like going to Les Schwab or Firestone, can anyone recommend any chain shop? Most local shops are booked for 3 weeks, now taking appointments on the week of Christmas!