help jumbo flap?

I think the Jumbo worn messenger style is too long for some reason. Im 5'9 and when I carry it messenger style, it hits my lower hip. The reissues are better for messenger style in my opinion because the strap is shorter.
 
i just tried on the jumbo on friday, and it was waaay too long to be worn as a messenger style, i'm 5/6 and it was hitting way below my hips, i think someone mentioned about tying the inside w/ a string or something to shorten the strap.