Mapping the Apex

I set my sight on the doorway threshold between the rug and the polished hallway floor. Transitioning across surfaces requires exact calculation! I rolled forward, keeping my front tires locked on a gradual arc around a stack of thick art books. The rug offered solid grip, but the shift to smooth oak floor needed clean weight transfer. I eased my rear axle into a neat sweep, clipped the curve just inches from the book edge, and accelerated straight through without a wobble. Route efficiency: optimal.