Myddraal, allow me to address the beaver tail issue. We tried using only detachable hardware for the beaver tail and it did not work out well. The only solution was to have the 'lower sides' of the BT zippered to the main pack. It looks decent when attached but when you remove it the exposed zippers look completely out of place. I then had to weigh as to what we will be holding in the BT and things like helmets, outerwear, etc comes to mind. Granted I don't want wet gear inside my pack but the increased volume in the main compartment allowed me to pack my shell easily on the last trip. Like you I like my BTs so if I can get this to be a detachable option that is functional then I would go with one but unfortunately I could not find a good solution. So rather than further delay putting the Evade out I had to make the decision to go with what we have accomplished. My apologies to you or anyone who wanted the BT incorporated.