Laying down a flopped set: Am I being way too tight?

[DocBG]

Live Game Soaring Eagle Casino - No Limit Hold'em Cash Game - $1/$2 Blinds - 10 Players

General characteristics of the game: This game is typically very loose/passive pre-flop (it's not unusual to see 6 to 8 players limp in to an unraised pot; or to see a raise to $10 or $12 from early position called by 4 or more players) a raise to $15 or $20 could get just as many callers or see everyone fold. Also, a lot of players are willing to pay off big bets with nothing better than top pair (regardless of kicker) after the flop...in other words, a very profitable game. Max buy in is $100. Three times in the past 4 months I've laid down a flopped set, each time I've had second thoughts. Hoping to just get feedback on these plays and/or general observations about laying down flopped sets in this kind of game.

Hand 1: No read on villain(s) (just sat down and have never played with either before).

Blinds: $1/$2
10 players

Stack sizes (approximate):
UTG (villain 1): $200
UTG+1 (villain 2): $220
MP1: $100
MP2: $180
MP3: $400
LP1: $50
CO (hero): $120
Button: $80
SB: $300
BB: $180

Pre-flop: (10 players) Hero is CO with 4 [img]/images/graemlins/heart.gif[/img] 5 [img]/images/graemlins/heart.gif[/img]
UTG calls; UTG+1 calls; 2 folds; MP3 calls; LP1 folds; Hero calls; Button calls; SB completes; BB checks.

Flop: Q [img]/images/graemlins/club.gif[/img] 5 [img]/images/graemlins/diamond.gif[/img] 5 [img]/images/graemlins/spade.gif[/img] ($14, 7 players)
SB checks; BB checks; UTG bets $15, UTG+1 raises to $45, MP3 calls, hero folds.

Hand 2: Played with villain for about 1 hour, she seems like a pretty tight, by the book kind of player.

Blinds: $1/$2
10 players

Stack sizes (approximate):
UTG: $100
UTG+1: $60
MP1: $200
MP2: $300
MP3: $100
LP1: $80
CO: $50
Button (hero): $180
SB (villain): $250
BB: $100

Pre-flop: (10 players) Hero is Button with A [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/diamond.gif[/img] UTG folds; UTG+1 folds; MP1 calls; MP2 calls; MP3 calls; LP1 folds; CO folds; Hero calls; SB completes; BB checks.

Flop: 8 [img]/images/graemlins/spade.gif[/img] A [img]/images/graemlins/club.gif[/img] A [img]/images/graemlins/heart.gif[/img] ($12, 6 players)
SB bets $15; 4 folds, hero calls.

Turn: J [img]/images/graemlins/heart.gif[/img] ($42, 2 players) SB bets $50, hero folds.

My own evaluation of this hand is that my major mistake was not raising the flop to help clarify the hand.

Hand 3: Villain 1 is a regular who I consider a solid player and moneymaker in this cardroom. But in the past 2 hours he's called me down 4 times with second best. Villain 2 I've played with for about 2 hours, and he's been very LAG and on a good run of cards.

Blinds: $1/$2
10 players

Stack sizes (approximate):
UTG (hero): $450
UTG+1: $20
MP1 (villain 1): $225
MP2: $180
MP3: $100
LP1: $150
CO: $80
Button: $80
SB: $200
BB (villain 2): $580

Pre-flop: (10 players) Hero is UTG with 4 [img]/images/graemlins/heart.gif[/img] 4 [img]/images/graemlins/diamond.gif[/img]; hero calls; UTG+1 folds; MP1 calls; MP2 calls; MP3 folds; LP1 folds; CO calls; Button calls; SB completes; BB checks.

Flop: 9 [img]/images/graemlins/spade.gif[/img] 5 [img]/images/graemlins/club.gif[/img] 4 [img]/images/graemlins/spade.gif[/img] ($14, 7 players)
SB checks; BB bets $15; hero raises to $45; MP1 pushes for $223 total; 4 folds, BB calls; hero folds.

[ajmargarine]

First two are trips, last one is a set. [img]/images/graemlins/smile.gif[/img]

First one, meh, pretty weak there, but not too horrible.
Second one is probably OK.

Third one don't fold ever ever ever.

[Shizzle12345]

NEVER EVER FOLD 3. first one meh, 2nd one ok. but why the fk are you playing A2s like that anyway on the button.

[aditya]

fold 2 and stackoff in both 1 and 3 please.

[thedustbustr]

Axs there is a super ez limp full ring, for flush value and trip-kicker value only. trip aces is danger. raise pre and het called in 3 places by better aces. live fr plays a lot differently than online 6m.

i'd usually stack off in hand 1, in hand 3 i'd start planning what i was going to buy when i shipped that pot

[bilbo-san]

First one is [censored] terrible. You are only 60BBs deep!!!

Hand 3, which is the only one that actually IS a set, is even worse.