I smoked two huge slabs of pork ribs (not St. Louis cut) at a local grocery store. I thought I would trim them to be St. Louis cut but after opening the package the ribs weren't very long and I'd be cutting about 1/2 of the weight of the ribs if I cut them St. Louis style. I ended up smoking the ribs as they came out of the package and it seemed like there was so much fat. I also have a Sam's close but didn't see St. Louis cut ribs there. Does anyone have any tips on purchase St. Louis cut spare ribs? Thanks in advance and I hope this makes sense. I'm tired of getting all this extra meat. I'm looking for large ribs, St. Louis cut.