I am the same height and have the exact same issue. My solution was to use a wrapless cue, which I am comfortable with. This way I'm not distracted by gripping half on the wrap and half on the butt. I realize that not everyone likes a wrapless but, this works for me. I have one cue that is 1" longer (29.5" & 29.5") and I grip it right at the end of the wrap. Trouble is, I don't really like the way the cue hits. Wanna buy it? lol

I'm same height, and I play with OB-1 30" shaft.