When you rub the ribs, only so much will stick. Make about 1/4 - 1/2 cup of rub - it will be plenty.
ChefJune's recipe reminds me of ribs my neighbor made - they were yummy. I think she even told me there were times she used vinegar only and nothing else, well, except salt and pepper.
When I think of a slab of pork ribs I think of my mother baking them over a skillet of sauerkraut - YUM!
"Count yourself...you ain't so many" - quote from Buck's Daddy