An improved technique for acoustic sensing involves, in one embodiment, launching into a medium, a plurality of groups of pulse-modulated electromagnetic-waves. Methods for an exact or a sample POF function are provided. The silo ports are manifolded to a common outlet. The projectile support platform may have a projectile launch key dimensioned to removably receive the end of the wing of the projectile and engage the trailing edge of the wing. In at least one embodiment, a threshold voltage distribution upper limit is determined after a single programming pulse for lower page programming, and upper page programming start voltages are adjusted based on the determined upper limit of the threshold voltage distribution. The present disclosure also includes a method for reducing a bone fracture and an apparatus such as a cable button for use with a bone plate, the cable button including a plurality of legs, where a leg includes a protrusion, where the protrusion engages the bone plate, and the cable button defines at least one cable button aperture.