stud high hand - bet 6th, or check behind?

[MrNiceGuy 0]

7 Card Stud High ($3/$6), Ante $0.50, Bring-In $1 (hand converter)3rd Street - (1.33 SB)Seat 1: xx xx J:heart: ___foldsSeat 2: xx xx K:heart: ___foldsSeat 3: xx xx 9:spade: ___foldsSeat 4: xx xx 4:heart: ___calls ___callsHero: A:spade: 9:heart: A:heart: ___completesSeat 6: xx xx 6:club: ___callsSeat 7: xx xx 8:club: ___callsSeat 8: xx xx 3:spade: ___brings-in ___folds4th Street - (5.67 SB)Seat 4: xx xx 4:heart: Q:diamond: ___callsHero: A:spade: 9:heart: A:heart: 8:spade: ___betsSeat 6: xx xx 6:club: 3:diamond: ___callsSeat 7: xx xx 8:club: 7:heart: ___calls5th Street - (4.83 BB)Seat 4: xx xx 4:heart: Q:diamond: Q:club: ___bets ___callsHero: A:spade: 9:heart: A:heart: 8:spade: 2:spade: ___raisesSeat 6: xx xx 6:club: 3:diamond: 9:diamond: ___foldsSeat 7: xx xx 8:club: 7:heart: 5:diamond: ___folds6th Street - (8.83 BB)Seat 4: xx xx 4:heart: Q:diamond: Q:club: 4:spade: ___checksHero: A:spade: 9:heart: A:heart: 8:spade: 2:spade: 2:heart: ___checksPlan is to bet/call the river UI if checked to again, or to call if he bets.

[Rocketwadster 0]

I would definately check behind on 6th street there. What did that guy start with? a) Flush draw - not likely with all those hearts showing.B) Straight draw - perhaps.c) A split pair - highly likelyd) A hidden pair - perhaps.Looks to me like he made two pair, THEN made a full house and was hoping for the check-raise (a poor play in that spot). 8)