Nate/Drew, you guys have a different moon chart on saltwaterbastards.com. We haven't noticed any problems with the one we're using.
What you may want to consider is looking into changing hosting provider/plan.... I've been noticing that vBull performance seems sluggish on saltwaterbastards.com. We had the exact same problem with BWE. It wasn't that bad with phpBB, but it was horrible with vBull. That's the reason we changed hosting provider before we rolled out vBull....
Forgot to say - big THANK YOU goes to PerryC from http://www.allkayakfishing.com/ . Perry's vBullettin board seems to be performing very nicely, and we went with Perry's recommendation for web hosting provider.
We're very very happy with the selection - the speed is definitely there.