The best ribs I`ve done so far consisted of an off the shelf rub and my own sauce to keep on it for moisture. I keep the temp around 250 for about 3-4 hours using lump charcoal and pecan chips. They aren`t "fall off the bone" but have great flavor to them.
I pretty much toss this all in a sauce pan, so I honestly don`t have any measurements.
Small can of tomato paste
Water
White vinegar
Apple cider vinegar
Mustard
Garlic (minced and powder)
Seasoned salt
Paprika
Onion powder
I know there`s more, but typically I start rummaging through the spice cabinet for anything that looks like it would be of help, that and depends on how may beers in so far, lol. If I had exact measurements I`d list it, I`m not secretive like some people. I`d rather share. Beer and rib season is over now for me, onto chili`s, stews, and mixed drinks for the winter...