Is it okay to use plain ol' quick cook oats rather than whole rolled oats, or jumbo oats?? I know the theory that one has a higher GI than the other, but is there reeeeally any truth behind this, and does it affect what type of oats you would buy? Does anyone notice a difference from eating one type in comparison to another? Or is it just another of those things that people get caught up in, like the whole 'eating carbs at night' thing??