For what it's worth, at least in cold weather, roominess isn't really desirable. You should have a pack that can handle inclement weather and a really tiny tent in a perfect world.

On one hand, you're right and I do have a smaller tent. On the other hand, on a motorcycle you have a lot of bulky clothes and you need to put them somewhere. So it's always a bit of a balance.

Very fair; I forgot about that weird dichotomy!