LOS ANGELES ? At the lavish underground EDISON Bar/Lounge in Downtown Los Angeles, next to Little Tokyo, Don Papa?s Rums found a new and eager group of tasters sipping sample glasses of its 7-year-old, 10-year-old, and sherry casked Negros Occidental cane sugar-based rums. The complimentary tasting event on June 20 was part of Edison?s weekly ?