Interesting about the loose bindings. I myself have noticed that I like my binding straps to allow a little bit of give. When I overtighten a binding strap I feel a huge change in the way my board as a whole feels and within 20 feet, I stop and back it off a notch.
I typically ride with my bindings a little loose too. I don't feel any loss and It feels better to me. I think it's mostly mental though, feels more playful or something..