I'm in the BGE magic camp-do the prep work and let the BGE do its thing. So, for short ribs I run nekked for the duration which is around 4-6 hours. As with all things BGE, many roads will get you there, so pick one, note the results and change it up the next go-round. And have fun in Salado!
@anton-looks like you are gonna have some great eats! And an observation, whenever I have a brisket that is initially too long for my LBGE I drape it over a foiled brick til the shrinkage takes over and it can fit. FWIW-