My numbers this year for my Petite Pearl grapes
Ph. 3.68
Ta. 7.8
Brix. 21
I did not have a good year. Had a very heavy frost/freeze 12 May. 3/4's of the buds were opened, lost them. Harvest was very light, 5 lbs per plant. Last year 11 lbs per plant. Vines are 6 years old. Winter is no problem my coldest night has been -23f. No ill effects on any of my vines.
I think the wine is Fantastic, no noticeable hybrid taste, a spicy plum taste, nice tanin level, its there but not heavy, a very nice strong berry after taste that lasts. Fruity aroma. Nice thing is by the second or 3rd glass the flavors are still there. Did oak it and used Lavin RC 212.
I normally drink Cabernet Sauvignon from the Ca juice buckets i buy, think the Pearl is better. My 2 cents