Well, if what you want is to replicate Johnny Triggs method, as previously mentioned, you need to learn from him. I appreciate and typically cook my ribs, trimmed St. Louis Style and with no foil, I do glaze, but, not with a sauce. However, if I was going to compete, or wanted to replicate a competition rib, I would foil and sauce.
I have been messing with this style over the past year for kicks and currently an doing this. I trim, rub and wrap in plastic for 1 hour. Fire cooker and get temperature to 225F. I then unwrap ribs, hit with a second layer of rub, and onto the cooker. I check at 2.5 hours, if the ribs are bending a little, into the foil, if no, then another 15 minuites to check again. I add a light dusting of a 50/50 mix of rub and dried brown sugar, or I use Simply Marvelous Cherry rub straight, add some palm syrup or honey in a light drizzle, then wrap tightlly and out on cooker at 225F. Allow to run 1 hour, remove and check, it should nearly bend to done. Put back on cooker for 30 minutes or so. Done. I will add a little sauce to the foil pack with the drippings in it, and brush this on about 15 minutes into the second non-foil cook. Nice shiny competition style ribs with a good kick of flavor, sweeter than I normally want, but, pretty and strong flavored.