Im gonna guess that you will lose some of the flavor and aroma from the bourbonand vanilla during the vigourous primary fermentation.
Instead, how bout putting the vanilla beans and boubon in a mason jar in thefridge now, then at the 12 day mark, rack to secondary and add or at kegging day, rack to the keg and add?
"Sometimes Im right half of the time ...."
I forgot to mention that I've had the vanilla beans and innards soaking in bourbon for about a week now. The brew has been sitting in primary since last Saturday.
I guess I was just hung up on the 2 weeks for primary. Tomorrow is day 12 so I'll just plan on racking to the BB with the vanilla bourbon concoction. As a bonus, I'll be able to save some of the yeast like I had been hoping to do.