Soft digestible carbs may seem like fine meals short term, but you have to think long term pouch health. Having lots of carbs in your diet on the theory that those are comfortable meals to "go to" is a faulty long term strategy as you are potentially feeding a long term SIBO situation, especially if there is an inadequate fiber intake. In fact that's the usual predictable SIBO situation- too much carbs and sugars and not enough fiber spells SIBO City.