I have an Imperial Stout I'm going to age in a whiskey BBL with vanilla beans and would like to hear from others who may have experience doing this. I'm wondering if it's best to split the beans or leave them intact, I'm sure split would better impart the vanilla flavor but have some reservations about all the tiny seeds potentially becoming a problem once bottled. I considered a mesh bag but the BBL has a very small bung. O.G. was 1.123, F.G. 1.038, 5 gallon BBL probably for ~ 1 year, grade B Madagascar beans I just received today. Any suggestions on number of beans? I had planned on cacao nibs but it is already so chocolaty the nibs would be wasted.