meh, isolating = right play? 5/10

[yvesaint]

PokerStars No-Limit Hold'em, $10 BB (6 handed) internettexasholdem.com

BB ($1420.60)
Hero ($2007)
MP ($1763)
CO ($2387)
Button ($1666)
SB ($365)

Preflop: Hero is UTG with T[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises to $40</font>, <font color="#666666">1 fold</font>, CO calls $40, Button calls $40, <font color="#666666">1 fold</font>, BB calls $30.

Flop: ($165) 4[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">BB bets $70</font>, <font color="#CC3333">Hero raises to $300</font>

villain is bad, opens pf constantly anywhere from 4xBB - 15xBB, and calls re-raises with stuff like Q3s and calls short stack all-ins with Q7s

also has the tendency to re-raise any mini-raise pf

ive been playing very tight due to basically no cards

he will pay off if i hit though, and i count my T and J outs as probably good too

do i bet a blank turn if he checks to me?
what if he bets a blank turn for 1/2 pot? 3/4 pot? full?