Isolated myself into half of a small pot, I think I still like it?

My raise on third was made in the hopes everyone would call the extra bet to build a monster pot in which I felt I was the best contender for winning the whole pot, instead my opponent decided to make them all face two bets cold with apparently a pair of 9s (shockingly this opponent went broke while I type this, which is quite unfortunate). Not quite sure what to think of my opponent that folded on 7th, I assume he was unable to pull out any kind of low or weak two pair that he could call with in hopes of getting some piece of this pot. My burst of energy on 6th was to build a side pot which I could only assume I was ahead for both high and low in the event I was unable to make a low on the river against the all in opponent that I was giving credit for 6s full or Aces full. Also, should I be completing with a hand like 254 with a 2 flush? I'm not sure what exactly qualifies as a premium hand in this game other than obvious rolled up/3 straight flush, I would assume that this hand is pretty good.

7 Card Stud High-Low ($2/$4), Ante $0.25, Bring-In $1 (hand converter)

3rd Street - (1.00 SB)

Seat 1: xx xx 6[img]/images/graemlins/heart.gif[/img]___calls
Seat 2: xx xx 2[img]/images/graemlins/club.gif[/img]___brings-in
Seat 3: xx xx Q[img]/images/graemlins/spade.gif[/img]___folds
Seat 4: xx xx Q[img]/images/graemlins/heart.gif[/img]___calls
Seat 5: xx xx K[img]/images/graemlins/diamond.gif[/img]___calls
Seat 6: xx xx 2[img]/images/graemlins/heart.gif[/img]___folds
Seat 7: xx xx 7[img]/images/graemlins/heart.gif[/img]___calls
Hero: 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/spade.gif[/img]___calls

4th Street - (4.00 SB)

Seat 1: xx xx 6[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img]___bets___raises___calls
Seat 2: xx xx 2[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img]___calls___calls___calls
Seat 4: xx xx Q[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/club.gif[/img]___calls___folds
Seat 5: xx xx K[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img]___calls___folds
Seat 7: xx xx 7[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/heart.gif[/img]___calls___folds
Hero: 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img]___raises___raises

5th Street - (9.50 BB)

Seat 1: xx xx 6[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/spade.gif[/img]___bets
Seat 2: xx xx 2[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/spade.gif[/img]___calls
Hero: 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img]___calls

6th Street - (12.50 BB)

Seat 1: xx xx 6[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/diamond.gif[/img]___bets $3.75 and is all-in
Seat 2: xx xx 2[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img]___calls___calls
Hero: 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img]___checks___raises

River - (15.44 BB)

Seat 1: xx xx 6[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/diamond.gif[/img] xx___all-in
Seat 2: xx xx 2[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img] xx___folds
Hero: 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img]___bets

Total pot: 16.44 BB

Results:
Total pot $61.75 Main pot $59.25. Side pot $0.50. | Rake $2

Seat 1: [9d 9h 6h As Ts Td 9c] (HI: a full house, Nines full of

Hero: [5s 4h 2s 6d Kh Kc 7d] (HI: a pair of Kings; LO: 7,6,5,4,2)