Vitis labrusca, I think you mean. Where's Paul from WLDG when you need him?
I had not heard of Chepika, the wines sound interesting. My brother John tells me that Nathan Kendall also has his own winery, N. Kendall, that has been around for a few years. John has heard good things and is interested in trying the N. Kendall wines, but says they are difficult to find.