Ray, just my humble opinion, and it may be too late, but I wouldnt go 2 hours in foil, even at 225. I think they will get a little soft. I would probably do 1.5 or so and then put them back without foil and check after an hour. 'Course, the good thing is there is no set way. I seem to have better luck with baby backs then St. Louis, but then I do them more often. Let us know how they turn out