$25NL - 6 Max

I have been raising a lot (27/19). Have not had a double-up, but won 4 or 5 fair-sized pots by generally showing down some big hands, but have also been getting little resistance.

SB ($24.40)
Staresy ($53.25)
UTG ($5.40)
MP ($15.90)
CO ($22.80)
Button ($11.75)

Preflop: Staresy is BB with T, J.
3 folds, Button calls $0.25, SB completes, Staresy checks.

Flop: ($0.75) 5, A, 8 (3 players)
SB bets $0.75, Staresy raises to $2, Button folds, SB calls $1.25.

Turn: ($4.75) Q (2 players)
SB checks, Staresy bets $3, SB raises to $6, Staresy would really like a line here and an explanation as to why!

I am torn between;
calling and re-evaluating
fearing a 25nl special of A Rag
wanting to raise, but not sure quite how much to entice the rest to go in
thinking about pushing