22+1RA, TT on monotone flop, CB?

[mlagoo]

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (9 handed) internettexasholdem.com

BB (t5080)
UTG (t6715)
Hero (t5010)
MP1 (t3695)
MP2 (t1800)
MP3 (t5420)
CO (t5080)
Button (t6760)
SB (t2120)

Preflop: Hero is UTG+1 with T[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t300</font>, <font color="#666666">5 folds</font>, SB calls t250, <font color="#666666">1 fold</font>.

Flop: (t700) 5[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero ?

How often do you CB here, if ever? If you CB, are you willing to get it allin? Or are you folding to more flop action?