NL 25 | TT turn line

[King Car]

I had not been to active the last couple times around the table. I was running at 18/15.

CO is a complete idiot and is capable of raising the flop with ATC.


The button had only been at the table for 5 hands, so no real reads.


What is hero's most optimal turn line and why?

No Limit Holdem Ring game
Blinds: $0.10/$0.25
6 players
Converter

Stack sizes:
Hero: $24.75
UTG+1: $25.50
CO: $5.20
Button: $23.90
SB: $8.50
BB: $146.45

Pre-flop: (6 players) Hero is UTG with T[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/heart.gif[/img]
<font color="#cc0000">Hero raises to $1</font>, UTG+1 folds, CO calls, Button calls, 2 folds.

Flop: 3[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] ($3.35, 3 players)
<font color="#cc0000">Hero bets $2.5</font>, <font color="#cc0000">CO raises all-in $4.2</font>, Button calls, Hero calls.

Turn: 4[img]/images/graemlins/heart.gif[/img] ($15.95, 2 players + 1 all-in - Main pot: $15.95)
<font color="#cc0000">Hero????</font>