Thanks for the help, guys. I don't think carrying it often will be an issue with me. I'll probably be grabbing it and taking it to and from my desk at work, and maybe in and out of my garage (into the house), which should be the extent of travel I'd experience with it. Downwinded, I really like that setup. I'll have to see if I can find a good deal on that one. My saddle bag has a similar feature and I love it (the expansion).
I can't cancel my order, but it's Amazon. Easy to return.