So I was doing research on how to flavor beer and clearly the obvious technique is drop whatever you want (Vanilla, Hops, Oak, Coconut...whatever) into the secondary.
Stone is my favorite brewery, and after reading a lot on their website, it seems that they always whirlpool any flavoring additives (except for hops, naturally). In the collaboration they did, the Macadamia, Coconut, Coffee Porter, they took all of those ingredients and just stuck them in the whirlpool. They also did this with Vanilla and Orange Peel in their Vertical Epic 09-09-09.
My question, is if anyone else maybe has experience with flavoring during whirlpool? If so, how long do you do it? How did it turn out?