Last Sunday -- more hands from session 2

Here are some more hands from session 2 last Sunday.
a. Mittelhand
J: CD
C: AK9
S: AT
H: AQ
D: Q
You win the bidding at 24 over Vorhand's 23. The skat gives you H8 and D9. Clubs or Grand?
Does it make a difference if Hinterhand had said 24? Would you have held that bid?
b. Vorhand
J: CH
C: Q8
S: ATK
H: 97
D: T
How high do you bid?
c. Mittelhand
J: S
C: 8
S: K7
H: AK
D: A987
How high do you bid?
d. Hinterhand after the exchange, having won the bidding at 18
J: CH
C: A
S: AK97
H: TQ7
D: A9
Spades or Grand? What do you discard?
e. Mittelhand after the exchange, having won the bidding at 20 over Vorhand's 18
J: D
C: ATK9
S: K8
H: AQ98
D: A
Presumably you discard the spades and play in a suit, but which one?
a. Mittelhand
J: CD
C: AK9
S: AT
H: AQ
D: Q
You win the bidding at 24 over Vorhand's 23. The skat gives you H8 and D9. Clubs or Grand?
Does it make a difference if Hinterhand had said 24? Would you have held that bid?
b. Vorhand
J: CH
C: Q8
S: ATK
H: 97
D: T
How high do you bid?
c. Mittelhand
J: S
C: 8
S: K7
H: AK
D: A987
How high do you bid?
d. Hinterhand after the exchange, having won the bidding at 18
J: CH
C: A
S: AK97
H: TQ7
D: A9
Spades or Grand? What do you discard?
e. Mittelhand after the exchange, having won the bidding at 20 over Vorhand's 18
J: D
C: ATK9
S: K8
H: AQ98
D: A
Presumably you discard the spades and play in a suit, but which one?