I used to ride my bicycle throughout Boston while carrying my cues. Over the shoulder with the strap across my chest tended to work fine. I used a Wave case, so the thicker shoulder pad was nice. It probably slid off once or twice, but it wasn't bad getting it back on.
During crazier times, I would also have a backpack and looped one of the backpack buckles through the hand strap of my cue case. I'd still have to use the shoulder strap, but the case was riding essentially vertically behind my right shoulder, if that paints a good picture. Oh, and it was a 4x8, fully loaded. And there was a full set of balls in my backpack.
During crazier times, I would also have a backpack and looped one of the backpack buckles through the hand strap of my cue case. I'd still have to use the shoulder strap, but the case was riding essentially vertically behind my right shoulder, if that paints a good picture. Oh, and it was a 4x8, fully loaded. And there was a full set of balls in my backpack.