SRD Talk:Balor

The Balor's strength bonus doesn't seem to be correctly applied. The Balor's 35 strength should result in a +12 bonus, yet his longsword and slam attacks seem to apply only a +7 bonus to damage (the longsword adds +1 damage for its total of +8). If this were +6 it could be explained as an off-hand weapon, but the Balor's whip only adds +3 damage from strength, suggesting it is the off-hand weapon and a Balor's strength is being misread as +6 rather than +12. Is this a typo, or does a Balor actually have only a 22-23 strength score?