Considering a pair of JE denim. Their waist sizing is typically off by two, E.g, tagged 29 is a 31. Love the cut, but as a true 31 I find that their size 30 is the only pair that fit in the thighs for me. Because a 30 is a 32 waist, I'm wondering whether I can just have the waist tailored? I've, done that with pants but never denim. Any issues altering the waist with denim?