An apparatus for monitoring sample milling in a charged-particle instrument has a variable-tilt specimen holder attached to the instrument tilt stage. The crankset includes a plurality of chain rings, with a largest chain ring of the plurality of chain rings having a plurality of teeth with teeth bottoms interposed between adjacent ones of the teeth. The invention provides the ability to recompile a design comprised of logic and memory blocks onto a new geometry fabric to implement a set of technology-specific design changes, without requiring a complete redesign of the entire integrated circuit. A legitimacy rating of the content source is passed. The compositions are excellent in detergency and quick foaming properties, have high antibacterial action and bring about sufficient antipruritic and deodorant effects on the scalp or body and antidandruff effects on the scalp. The system and method also described a real-time validation tool that enables a developer to create custom validation rules.