One of the benefits of owning the Synapse 19 was the ability to use a TSA lock on the main compartment of the bag to securely lock access to it so that my iPad Pro was safe. I cannot entirely tell from the product shots and photos in various reviews that I have read of this update to the line but it seems like the outside access only has a single zipper and cannot be locked for security now? Curious if owners can verify that is the case and if I am in fact right about that I am definitely disappointed by that.