I've recently acquired a Macbook Air 13 which I love. It's light, fast and does everything I need it to. Especially coming from a MBP 15. But now I have a bit of a dilemma. I currently use a SuperEgo with a BrainCell sized for the MBP to carry the MBA, which is obviously oversized. Overall, while I love my SuperEgo, for most tasks it's "too much" bag. So I was considering the Ristretto 13 for use, but then Tom introduced the Cadet 13/15. Now I'm not sure which way to go. Any advice would be welcome!