Wadmalaw Island’s Firefly Distillery hit the jackpot with its Sweet Tea Vodka, which has earned fans not just in the region but across the country. Not surprisingly, some of the national players are now trying to muscle in on the act. First, Jeremiah Weed out of Kentucky came out with its own version last fall. Then heavy-hitter Heaven Hill Distilleries added Sweet Tea to its Burnett’s Flavored Vodkas line. Then there was White Rock Distilleries of Maine. Nice try, boys, but we’re sticking with the local original.