I never foil and they go for 4 hours. Remember, the quality of the rib plays the most important part. I had used Costco's swift brand for a few years which is absolute garbage. I made the switch to what Rest Depot carries with the membrane fully intact, UNLIKE the swift's. I then remove the membrame, rub them for 6 hours and in they go. After 4 hours they are perfect, no foil needed.
I was going to try a hit and fast method here soon, but ultimately, the quality of your rib is what will make or break how well they turn out.
[B][COLOR=Red]FEC-100[/COLOR][/B] - [B]NIGEL[/B]
[B][COLOR=Blue][COLOR=DeepSkyBlue]2 [/COLOR]- ProQ Excel 20 [/COLOR][/B]
[COLOR=Purple]Offset Smoker "[B]The Beater[/B]"[/COLOR]
[COLOR=Lime]GREEN[/COLOR] [COLOR=SeaGreen][B]Top Gear Formula Model[/B][/COLOR] Therm0Pen
[SIZE="2"][COLOR="Magenta"]Rubs Of Choice - [COLOR="Black"][B]Jacked UP BBQ & Plowboys Yardbird[/B][/COLOR][/COLOR][/SIZE]