Flopping Broadway out of the Small Blind

[NYCNative]

I rarely slowplay but I wanted to maximize value and since it was an unraised pot, I didn't anticipate anyone having a monster so I thought that playing it fast would lead to folds.

A third spade dropping would have sucked but I was willing to risk it since I hadn't invested much into the pot. In this case, I was risking losing a small(ish) pot in the hopes of winning a big(gish) pot.

Is this a good way to play this or should I always take an aggressive line? In this case, it was a $5.50 (when I'm at work I play smaller limits than when I'm at home) but I wonder about playing it this way even at higher buy-ins (I usually play $11-33).

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (8 handed) converter

Button (t478)
Hero (t1620)
BB (t1460)
UTG (t1210)
UTG+1 (t4490)
MP1 (t1382)
MP2 (t1390)
CO (t1470)

Preflop: Hero is SB with T[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#666666">4 folds</font>, CO calls t20, <font color="#666666">1 fold</font>, Hero completes, BB checks.

Flop: (t60) J[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, BB checks, <font color="#CC3333">CO bets t60</font>, Hero calls t60, BB folds.

Turn: (t180) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets t80</font>, Hero calls t80.

River: (t340) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t100</font>, CO calls t100.

Final Pot: t540