Looks like I've got a different opinion than most on the 99 hand...

I'd have pushed the 2nd time as well in that situation almost every time. You are down to less that 10x BB stack, right? It's not like you have a huge stack, although you aren't super short-stacked either. I don't like limping here since implied odds for the set aren't there and you are giving the blinds a chance to catch up if they have crap. 99 is a vulnerable hand that you want to play heads up with if you aren't playing no set/no bet with it. Since any decent size raise is over a third of your stack, it's a push or fold situation in my opinion. There's only one limper in front of you. There's a very good chance that you have the best hand pre-flop (and you did have the best hand pre-flop). Push! It's unfortunate that the KQ guy made a loose call and you had to dodge 4 overcards with your 99, but if you only get one caller there (which will be the norm) then usually it's a coinflip. Even though you just pushed recently on another hand your folding equity pre-flop here is still probably decent....decent enough IMO to push again with 99.

Just my opinion, but I don't mind your push here at all. You hope they fold, and if they don't you hope you are up against overcards. I think it's still a +EV play even though you just pushed the hand before.