I've got 3 red WE VR kits aging right now (Chianti, Merlot, Cab Sav). I am interested in boosting the body and complexity of these batches. I will be oaking them this weekend, however, I've seen some people use grape packs to boost the flavor. Is this something I can do after ferm and stabilizing/clearing? Also, what are some good places to order grape packs (nothing local)?