A single-layer leather tip is simple and predictable to shape; a laminated tip uses bonded layers and can hold its radius longer with proper care. Neither replaces sound technique.
Trade-offs
Choose laminated leather for shape stability during frequent practice. A single-layer tip suits players who regularly shape and replace their own tips.
Fitting
Both need a flat shaft face, compatible adhesive and full cure. Do not split laminated layers with aggressive sanding.
Test both on the same shaft and judge grip, spin response and service life rather than the label alone.