Deep 25/50 i flop top 2. Turn decision(s)

[HEK]

Villian is usually a wicked rock shortstacker. I don't know if I've ever seen him with a normal stack on a table before. As a shortstacker he's seems pretty solid with his preflop all ins and such. But I have no clue about how he plays with a normal stack let alone deep.

What are my turn decisions based on the two different scenarios I provided below?

Party Poker No-Limit Hold'em, $ BB (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP1 ($5866)
MP2 ($7167)
CO ($4875)
Hero ($11358.41)
SB ($6426)
BB ($15493)
UTG ($2000)

Preflop: Hero is Button with Q, K. SB posts a blind of $25. UTG posts a blind of $50.
UTG (poster) checks, 1 fold</font>, MP2 calls $50, CO calls $50, Hero raises to $275</font>, 1 fold</font>, BB raises to $644</font>, UTG folds, MP2 folds, CO folds, Hero calls $415.

Flop: ($1563) 4, Q, K 2 players)</font>
BB bets $850</font>,Hero raises to $2500</font>, BB calls $1650.

Turn: ($6563)

Scenario 1: Turn = 2 [img]/images/graemlins/heart.gif[/img], VILLIAN bets $3750

Scenario 2: Turn = 4 [img]/images/graemlins/club.gif[/img], VILLIAN bets $3750