OK need some help, I think I'm really close to the perfect bag for my EDC. My issue is the shoulder strap, it's a fixed type, no hooks and no swivels. It annoys me, the strap ends up twisted like every time I pick it up. Has anybody modified a bag like this to a hook and swivel type strap? I really don't want to give up on this bag over one shortcoming, but it's a big shortcoming.