I'm not going easy on you, your stats are really, really good. I saw a few things:
1. ATS is too low. Your vpip/pfr in LP is too low, which means you are not stealing enough. You should be stealing 30-35% of the time--your vpip/pfr suggests to me that you are probably in the low to mid-20s. Be more aggressive first in from the cut off and the button. Once you get comfortable stealing like crazy from these positions, start treating the hijack like a stealing position when your left is clear.
2. Your vpip/pfr is just a touch out of line. I'd like to see this get to 12/8 or 12/9--the easiest and most profitable way to do this would be to cut out some EP limps--raise them or fold them depending on table conditions. Combined with stealing more from LP, this will bump up your aggression and rearrange your hands a bit so you are playing a higher proportion in position and with the initiative that comes from being the preflop raiser.
3. Your BB loss rate is a tiny bit high. It is not in the range that I consider a leak, but you seem capable of getting it down some. You'll have to look back through your BB hands to figure out what you are doing wrong--maybe you have to defend more, or maybe you have to defend less. I really can't tell from the stats. I don't think the problem is in your 3 betting, which looks fine to me.
4. River play. Here's what I did to come to this conclusion: I looked at the shape of your non-sd line. The fact that it starts out level and then tails off into a downward angle. Then I looked at your SD line which changes its angle sharply upward at about the same time the non-sd line starts downward. Then I looked at your river agression factor of 1.1 OTB, indicating that you call on the river essentially as often as you bet/raise on the river. Your river aggression basically decreases as your position gets later, indicating that you are playing these hands much more slowly than the big hands you play from EP. Based on this evidence, I suspect that you are not betting your hand enough on the river when it is best. I think you have started checking behind and check/calling a lot more than you used to, and this has moved a lot of your winnings from the non-sd line to the sd line. The fact that you said the last few thousand hands have been less nitty supports me in this, suggesting that you are getting more marginal hands to showdown.
I'm not prepared to say this is a leak, but it is something you are going to want to study very carefully, because you could be missing value on the river. I think you probably are. Go back through your hand histories and look for hands that went to showdown with a check/check on the river or where you check/call. For the winners you find, study the villain's play, put him on a range, and then determine whether you could or should have bet the river for value.
Do this for the losers, too--look for villains who won with a weak holding and see if there was an indication in the hand that a bet would have gotten the villain off his hand.