gopostal: This seems like it might be problematic, unless the idea is to keep your sync and DB's files separate. BTSync can't use the same folder for two keys, so we need to make a new folder on our drives for your key. If you move DB's files in there, we will get redundant downloads.
If you move DB's files into your repository, then let us know and we can cancel DB's key and use yours with his folder. This will then not re-download his files, but only yours, the missing ones. DB can then sync his folder up to yours and all is well.
Right now we have 2 syncs; as long as the content is different, no problem. If the plan is to keep them separate, then cool, but if you move his files into your repository, then we should know and we can make the necessary changes on our machines.