Beware of pressure on the lid
When you strap the laptop to the seat using bungies, you need to be careful not to apply any pressure to the lid. For example if you are like me and carry network cables, mouse, air card, usb cables, thumb drive, power supply, a dvd or two, and assorted papers, strapping the laptop to the seat can put excess pressure on the lid.
Apple started the latest the thin is in laptop design. The lids on newer machines are not as robust as they once were. In my case I was strapping the pc to the back seat with bungies. No problem holding it there securely, however after a while I started getting marks on the monitor from contact with the keyboard. Eventually, grey spots started to appear in areas where there was excessive friction.
The weight of the stuff in my bag and the force of the bungies put pressure on the lid and caused it to flex.
The monitor was replaced under warranty, fortunatley.
I looked very closely at the AXIO. Love the design and concept. Nearly pulled the handle until I noticed the size was a little small for my needs.
Also tried to order the Cortech Sport Bag, unfortunately no one had stock. It looked about the right size, and had lots of favourable coments.
In a bike shop a month or back found a used cruiser sissy bar pack shaped like a small duffle. Perfect size and has four d-rings in the right spot. I've taken to strapping this to the seat, and all appears well.