Slowed down on the turn. Good or bad?

PokerStars Game #21519185017: 8-Game (Omaha Pot Limit, $0.50/$1.00) - 2008/10/26 17:54:48 ET
Table 'Selene II' 6-max Seat #1 is the button
Seat 1: FloppyMcNutZ ($114.75 in chips)
Seat 4: Ralphini ($103.75 in chips)
FloppyMcNutZ: posts small blind $0.50
Ralphini: posts big blind $1
*** HOLE CARDS ***
Dealt to FloppyMcNutZ [Ah 4d 4c Ad]
FloppyMcNutZ: raises $2 to $3
Ralphini: raises $6 to $9
FloppyMcNutZ: raises $18 to $27
Ralphini: calls $18
*** FLOP *** [4h 8s 7c]
Ralphini: checks
FloppyMcNutZ: bets $40
Ralphini: calls $40
*** TURN *** [4h 8s 7c] [6h]
Ralphini: checks
FloppyMcNutZ: checks
*** RIVER *** [4h 8s 7c 6h] [7h]
Ralphini: bets $36.75 and is all-in
FloppyMcNutZ: calls $36.75
*** SHOW DOWN ***
Ralphini: shows [7d Th Qd Qh] (a flush, Queen high)
FloppyMcNutZ: shows [Ah 4d 4c Ad] (a full house, Fours full of Sevens)
FloppyMcNutZ collected $206.50 from pot
Ralphini leaves the table
*** SUMMARY ***
Total pot $207.50 | Rake $1
Board [4h 8s 7c 6h 7h]
Seat 1: FloppyMcNutZ (button) (small blind) showed [Ah 4d 4c Ad] and won ($206.50) with a full house, Fours full of Sevens
Seat 4: Ralphini (big blind) showed [7d Th Qd Qh] and lost with a flush, Queen high


Was slowing down on the turn bad? After the hand I was thinking I made a mistake by not betting because I was committed. I mean if he bet I was calling anyway so betting the turn is obvious right? Also I should mention the PLO is easily my weakest game.