1/2 Stud8: Dump queens on 4th here?

[Noir_Desir]

HORSE - 7 Card Stud High-Low ($1/$2), Ante $0.10, Bring-In $0.50 (converter)

3rd Street - (0.70 SB)

Hero: Q[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/spade.gif[/img]___raises___calls
Seat 3: xx xx 5[img]/images/graemlins/diamond.gif[/img]___calls___calls
Seat 4: xx xx 6[img]/images/graemlins/club.gif[/img]___raises
Seat 5: xx xx 9[img]/images/graemlins/spade.gif[/img]___folds
Seat 6: xx xx 2[img]/images/graemlins/club.gif[/img]___brings-in___calls
Seat 7: xx xx J[img]/images/graemlins/heart.gif[/img]___folds
Seat 8: xx xx J[img]/images/graemlins/club.gif[/img]___folds

4th Street - (8.70 SB)

Hero: Q[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img]___checks___folds
Seat 3: xx xx 5[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/diamond.gif[/img]___checks
Seat 4: xx xx 6[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img]___bets
Seat 6: xx xx 2[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/heart.gif[/img]___calls


Unfortunately i have no real reads. Is this fold standard or too tight? Bet 4th?