[MENTION=3734]Giraffe[/MENTION] - here's an updated record:
Hull - conceded first in 14 games: W3 D0 L11
Palace - conceded first in 16 games: W5 D2 L9
Forest - conceded first in 22 games: W5 D7 L10
Brighton - conceded first in 16 games: W0 D7 L9
Leicester - conceded first in 18 games: W2 D2 L14
Bolton - conceded first in 17 games: W4 D5 L8
Based on the above stats... (feel free to correct - I did these calculations in a rush)
Average points earned per game where play-off contenders have conceded first
Hull - 0.64
Palace - 1.06
Forest - 1.00
Brighton - 0.44
Leicester - 0.44
Bolton - 1.00