Skip the pressure cooker and use the Weber. Try the hot and fast method, works good for baby backs.
Build a hot pile of coal on one side of the grill.
Peel off the silver skin, rub down with oil, salt, pepper, no sugar or sugary rubs yet!
Clean and oil the grill top, slap the rack of ribs down, cover, come back 20 minutes later, flip, cover again for 20 minutes.
In the mean time, prepare a piece of HD al-foil large enough to wrap the rack with
Make a boat with the foil, put the ribs in, add a bit of beer, cider, apple juice, whatever, and close up the boat
Move boat to cooler side of grill, cover and let cook for at least an hour. Turn the boat 180 deg maybe 30 minutes later so the other side faces the coals.
When you can't take it any more, open up the boat. Two choices, make your own sauce from the contents of the boat, or use a canned sauce.
Enjoy!
