Wow, you have a very good memory Jesse. A great deal has happened since 2009. I have since updated the VACs myself several times and since, stopped using VAC altogether as I have found VB-Audio cables work much better than VAC.
Despite this, NOTHING has stopped the output from BBP becoming full of glitches after 48 hours including trying direct soundcard I/O which involved no virtual cables at all, RDS injected after BBP from a hardware unit, you could virtually count the seconds down to when you knew it would start happening. After months of trying about everything I could think of, I concluded that the problem is happening inside BBP as all other possible variables had been taken out of the equation.
The only method I found which got around the problem was to get the machine to automatically stop and restart BBP every 24 or 48 hours at 3am in the morning resulting in a few seconds of dead air.
The box is still running and still running like this, it's a full-time licensed station so I can't really be messing with it at this stage.
I might try it on a less critical machine or a test machine in the near future.