My point is that had the OP won this hand when his opponent flipped
then this would never have been posted.
I personally dont see anything wrong with a raise utg with AJ esp. at a tight table. I"d probably raise with a much wider range of hands if the table is that tight knowing that I"m likely to win the blinds.
Folding AJ utg everytime also makes your game exploitable. What do you do with AQ or 88? IF your range is so tight, you"re never gonna win a big pot with a good hand.