Hi Derek,
We can't leave anything open in the commercial forums. Must respond within the time frame.
All I can think of are just ideas, which I don't really know if will work unless I test them. They are also all 6.4 related, so I'm not sure if they will help you, and I'm not even sure that if they work, they would be a best practice as they include some redirects.
But, I will be happy to ask around, and if I can find something that might help, I or we will add it here.
If you agree, you don't have to answer.. we'll just respond here if we have any info.
Palli