I did an Old Vine Zin back in 2008 turn out a double gold winner at M&M. 10 lugs OVZ, 2 lugs petite Syrah. Brix 24.5, TA .67 (sorry can't find what PH was). I used RC212, yeast nutrient and punched down 3 times a day at first then 2 times a day. She finished fermentation pretty fast (6 days)...