NL100: AK vs solid TAG

[anacrime]

Villain is SiberianMan and seems very solid. He's been running at 21/11/1.5 and been very straight forward. However, he has seen me play very out of line. I have been raising and reraising a ton and keep having to fold. I probably have a pretty bad image. Should I three barrell here or is that just spew?

PokerStars No-Limit Hold'em, $1.00 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB ($41.10)
UTG ($55.50)
Hero ($198.90)
Button ($48.75)
SB ($231)

Preflop: Hero is MP with K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $4</font>, <font color="#666666">1 fold</font>, SB calls $3.50, <font color="#666666">1 fold</font>.

Flop: ($9) 9[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $8</font>, SB calls $8.

Turn: ($25) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $16</font>, SB calls $16.

River: ($57) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero?