Is this a great spot to semi-bluff?

[Bill Ivey]

I am mainly a cash game player, and when I play MTTs I have a cash game mentality. This is a $100+9 on pokerstars, and I am wondering if this was a great spot for me to semi-bluff and pick up some chips.

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (8 handed) pokerhand.org hand converter

MP2 (t17340)
CO (t4135)
Button (t7693)
Hero (t3823)
BB (t2200)
UTG (t3996)
UTG+1 (t9190)
MP1 (t8093)

Preflop: Hero is SB with 9[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to t400</font>, <font color="#666666">3 folds</font>, Hero calls t300, <font color="#666666">1 fold</font>.

Flop: (t875) 6[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP1 bets t600</font>, Hero folds.

Final Pot: t1475


I went over this hand with a couple people I realized I missed on a great opportunity to check-raise all in on the flop.

What do you guys think about this?