I've been looking at the Chicane tank bag for the K1200LT. The front of the bag has two velco tabs for mounting. The rear of the bag also has a velco tab that appears it could be used for mounting or either securing the strap holder compartment. As there are no mounting directions with the bag could someone explain exactly where to place the long piece of velco the comes inside the bag and explain if the back tab, which is a long piece of velco, is used only to secure the strap holder compartment or is it used in some way to mount the bag?