"Save pots, not bets" vs. paying off too much - 2 hands

[ononimo]

I'm having trouble reconciling Ed Miller's "Save pots, not bets" advice with knowing when to fold when you feel you're beat. I feel like I've been paying off with 2nd best hand too much and have been making a conscious effort to pay off fewer winners but I'm worried about developing a weak-tight game.

Most importantly, how would you play the river on both hands? Feel free to comment on other aspects of the hand as well.

I had no reads on the villains on either hands other than they were loose (VP$IP > 30).

Hand #1:
Party Poker 3/6 Hold'em (9 handed) converter

Preflop: Hero is BB with Q[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, MP1 calls, MP2 calls, MP3 calls, <font color="#666666">3 folds</font>, Hero checks.

Flop: (5.33 SB) 7[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">Hero bets</font>, UTG+1 folds, MP1 folds, MP2 calls, MP3 calls.

Turn: (4.16 BB) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, MP2 calls, MP3 calls.

River: (7.16 BB) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">MP2 bets</font>, <font color="#CC3333">MP3 raises</font>, Hero folds, MP2 calls.

Final Pot: 11.16 BB

Results in white below: <font color="#FFFFFF">
MP2 has 3h 3c (one pair, threes).
MP3 has Th 6h (one pair, sixes).
Outcome: MP3 wins 11.16 BB. </font>

I checked the river because of the flush scare card and didn't want to bet into two callers. I feel like I played the hand properly and made the correct fold despite the results. Any comments?

Hand #2 occurred shortly after Hand #1 but at a different table. Again, no specific reads except for loose PF calling standards:

Party Poker 3/6 Hold'em (10 handed) converter

Preflop: Hero is BB with K[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/spade.gif[/img]. MP1 posts a blind of $3.
<font color="#666666">3 folds</font>, MP1 (poster) checks, <font color="#CC3333">MP2 raises</font>, <font color="#666666">1 fold</font>, CO calls, <font color="#666666">2 folds</font>, Hero calls, MP1 calls.

Flop: (8.33 SB) J[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, MP1 calls, MP2 calls, <font color="#CC3333">CO raises</font>, Hero calls, MP1 calls, MP2 calls.

Turn: (8.16 BB) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, MP1 checks, MP2 checks, <font color="#CC3333">CO bets</font>, Hero calls, <font color="#CC3333">MP1 raises</font>, MP2 folds, CO calls, Hero calls.

River: (14.16 BB) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">MP1 bets</font>, CO calls, Hero calls.

Final Pot: 17.16 BB

Results in white below: <font color="#FFFFFF">
Hero has Kd Js (one pair, jacks).
MP1 has 9h Ah (flush, ace high).
CO has Jd Qh (one pair, jacks).
Outcome: MP1 wins 17.16 BB. </font>

After the raise on the turn, I knew I was against at least an Ace-high flush draw if not a flopped flush, a straight or even two pair - in other words, I was in bad shape. Should I have dumped my TPGK on the turn, folded on the river, or was the pot already big enough that I had to call the river bet?

EDIT: my PT WTSD% is 34% and my Won$SD% is 47.5% ... how much value do people put into these stats?