The Wimberley Arca-Swiss style lens plates come with safety stops at the front and back of the plate in order to prevent your lens from accidentally slipping out of the quick release clamp. The double dovetail cross-section on the plates allows you to attach Wimberley flash brackets to the upper or lower surface of the plate. Wimberley plates are ideal for Wimberley's flash bracket system components but have been milled to also accommodate Really Right Stuff and Kirk flash brackets.
The P-10 has anti-twist nubs at the back of the plate. These help to keep the plate from twisting if it is mounted with only one fastener. Wimberley's design is unique in that it consists of two small nubs with a .7" space in between instead of a single flange. This provides better performance when butted against a curved surface. This design also allows the nubs to straddle the reinforcing web found on the back of some lens feet.