st. louis ribs 18.5

New WSM 18'' owner here. About to cook my 3rd attempt at St. Louis spare ribs. Have had pretty good results so far. Going to try the Johnny Trigg method today w/rib tickler rub using brown sugar, honey, tiger sauce and parkay in the foil. Plan on cooking @ 275 for 2-45-45. When it comes to...

Hey ya'll, Just wondering about your ways of getting 3 racks of St. Louis' on a 18.5. Thanks!