100NL 6m Multiway limped pot with TPNK

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

MP ($71.35)
Button ($86.85)
SB ($42.15)
Hero ($100)
UTG ($95.50)

Preflop: Hero is BB with 3http://www.flopturnriver.com/phpBB2/...iles/spade.gif, Khttp://www.flopturnriver.com/phpBB2/...miles/club.gif.
1 fold, MP calls $1, Button calls $1, SB completes, Hero checks.

Flop: ($4) Khttp://www.flopturnriver.com/phpBB2/...iles/heart.gif, 9http://www.flopturnriver.com/phpBB2/...iles/spade.gif, Qhttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (4 players)
SB checks, Hero bets $3, MP folds, Button calls $3, SB folds.

Turn: ($10) 7http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
Hero ???


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Just combing over my PT database, I seem to lose a decent amount of money in the BB with high card low card hands that make top pair.

What percentage of the time do you check/call versus lead on the flop when you make a weak top pair?

What's your turn play here?

I usually fire again, he could easily be floating or have the Q or some sort of draw, if he calls i probs check/call a small river bet.

Bet $6, fold to a raise. Check most river cards.

I really dont like those spots. sometimes I check/call and block a blank river if villain isn't overly aggro, but agree usually firing again half to 2/3 pot is best. check/folding the best hand sucks and you can trust the info if he raises.