The group continued to record for Rounder and Sugar Hill into the 1990s ; two of the albums won Grammy Awards for Best Bluegrass Album .
The albums are 1993 's Waitin ' for the Hard Times to Go and 1995 's Unleashed .
The group continued to record for Rounder and Sugar Hill into the 1990s ; two of the albums , 1993 's Waitin ' for the Hard Times to Go and 1995 's Unleashed , won Grammy Awards for Best Bluegrass Album .