TPTK flush draw...line critique

I just sat down...my 3rd hand. I get two callers and an all spade flop. I probably pwn pot equity here. In this case, obv, no one had anything.

More generally, what is your line to maximize profit...same line, lead out a different amount, or check raise?

My thought process was to build the pot with Qs or Ax along for the ride, so I could get some value.

***** Pacific Hand History for Game 53585971 *****
$0.25/$0.5 Blinds No Limit Hold'em - *** 06 11 10:19:53 2006
Table Don Diego (Real Money)
Seat 3 is the button
Total number of players : 10
Seat 10: bkdeamon ( $48 )
Seat 1: nrajovic ( $52.25 )
Seat 2: Schnulli ( $47.35 )
Seat 3: bluff006 ( $54.02 )
Seat 4: 2bad4u69 ( $49.65 )
Seat 5: sparkeee ( $50 )
Seat 6: HDrydr96 ( $70.36 )
Seat 7: chrisd44 ( $47.85 )
Seat 8: ChicagoKid ( $49.5 )
Seat 9: Balsam52 ( $50 )
2bad4u69 posts small blind [$0.25].
sparkeee posts big blind [$0.5].
Balsam52 posts big blind [$0.5].
** Dealing down cards **
Dealt to ChicagoKid [ Ks Ad ]
HDrydr96 folds.
chrisd44 calls [$0.5].
ChicagoKid raises [$2.5].
Balsam52 folds.
bkdeamon calls [$2.5].
nrajovic folds.
Schnulli folds.
bluff006 folds.
2bad4u69 folds.
sparkeee folds.
chrisd44 calls [$2].
** Dealing Flop ** [ 5s, 3s, As ]
chrisd44 checks.
ChicagoKid bets [$3].
bkdeamon folds.
chrisd44 folds.
** Summary **
ChicagoKid collected [$11.35].

i lead here rather than c/r in the hope that someone tries to buy it if the flush completes or raises behind in which case im playing a big pot

Id lead for more than that because its going to be very unlikely that if a 4th spade falls much more money is getting in. So I would try to get as much money in on this flop as I could