Playing flopped nut flush

I'm wondering how the rest of you think the best way is to play a flopped nut flush or nut straight.

I can think of three basic ways one might play this:

1. Aggressive, just as if I'm protecting something. My favourite (see hand below). This gets money in from strong hands before any scare cards fall (for opp or myself). But it often folds the other players out. Often works with $25NL calling stations but not sure if it's any good at higher levels.

2. Agressive, but with smaller bets to make it more enticing to call. This is harder to get it all-in though.

3. Slow playing. I don't like this because although it's likely to make a little money from weak hands, it is unlikely to make big money and more likely to be boated on.

How do you play these hands
- in position against one or two players with full stacks?
- out of position against one or two players with full stacks?

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.15/$0.25
9 players
Converter

Stack sizes:
UTG: $9.50
UTG+1: $21.95
MP1: $9.25
MP2: $22.55
MP3: $27.30
CO: $23.10
Button: $24.65
SB: $36.75
flyingPenguin: $29.05

Pre-flop: (9 players) flyingPenguin is BB with 2 K
UTG folds, UTG+1 calls, MP1 folds, MP2 calls, 2 folds, Button calls, SB calls, flyingPenguin checks.

Flop: 3 5 A ($1.25, 5 players)
SB checks, flyingPenguin bets $1, UTG+1 folds, MP2 calls, Button calls, SB calls.

Turn: K ($5.25, 4 players)
SB checks, flyingPenguin bets $4, MP2 folds, Button calls, SB raises to $10, flyingPenguin raises all-in $23.8, Button calls all-in $19.4, SB calls.

River: Who cares. All in with the best of it. Hooray.

I'm betting it out about 2/3, 3/4 pot on the flop oop, same bet on the button if checked to me. If someone leads im giving them a small (but not a min) reraise.

On the turn I'm betting whatever I think an ace will call with a 3flush on the board depending on your opponent. My default bet is about half the pot, which is about what I would bet if i had the ace. If he makes a crying call and checks the river I'm betting about 1/3.

Its just pretty hard to get it in in situations like this, but looks as if you managed to do it. Good Job!