I’m piloting a PP-only airless at 0.2 ml dose for a lip tint line, swapping metallization for in-mold texture and tone-on-tone emboss so it still reads premium… After a 1 m drop the actuator has perceptible rattle that cheapens the brand — any tricks with snap-fit tolerances, integrated PP flexures, or surface finishes to preserve that crisp click and luxe hand-feel?