1. Forcing trainees to learn advanced techniques too early Description of mistake:The trainee still lacks basic skills, such as correct bead control, but the trainer or salon owner pressures them to apply a full nail with one large bead straight away. Consequences: Correct solution: Example (from real training transcription):“New techs should practise building with three beads: one bead near the cuticle, one bead on the nail body, and one at the tip. Don’t force them to work with a single bead straight away — it easily ruins the nail shape.” 2. Failing to teach correct bead pickup before starting overlays