Straus does 10lbs runs at a time of Sleepy Hollow. Historically they've just continued to blend up another 10lbs when they run out and it's still October.
I still have about 6-8oz of it left from the pound I bought a year ago.
A rum aromatic will have added sugar for the “Candy Cereal” taste/flavor. As well as some artificial vanilla/crud. Black Frigate is a Rum-soaked Virginia, with Turkish and Latakia without the added sugars. It’s no different than stowing a bunch of leaf in barrels for the return journey.