I know their is a seperate thread for this but I am looking for a bit more specific help. I am trying to decide between the Boa.XM and the BP.3 however I am having difficulty finding someone who has used these. My concern over the BP.3 is that it is the size of a monster and will be too bulky however the Boa.XM I worry will not have enough room. Does anyone who owns or has seen these bags know about this. How much stuff can you carry in them, does it look bulky, not enough room, etc...?