How do you change a longstanding reputation? Don Tones is trying to answer that question. The name Stever Hill Vineyards may be unfamiliar to readers of this site. Located on the western side of Keuka Lake, the winery has a reputation for sweet, lower-quality wines. In 2012, though, the Tones family bought Stever Hill Vineyards with an eye toward turning things around. The Tones family has been growing grapes in the region for generations, and multiple generations of the family are currently involved in winery operations — owners Don, Harold, and Jim, Don’s daughter Liz Sprague and son Mike, and nephew…