Yup. you need to use 22/32nds of a cup.
Yes, I'm exagerating. Priming ain't that tight of a science. You are down 10%, could you tell if you have 10% tooooo much head?
So far, I've had more experience thinking than I've had brewing....you don't think they are mutually exclusive, do you?
72 batches so far,
48 wine, mostly Loquat, peach, plum, prickly pear
23 beers and ciders
1 Tequila, from a prickly pear wine experiment that didn't work. I call it "Prickly Heat"