Same pattern as set_model_power: these methods only existed on the Smith controller, forcing five hasattr guards at call sites. No-op stubs on the base class give all controllers a stable interface; Smith overrides them. Remove the now-redundant hasattr guards. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Tqxrk8uj4M3w3d3eXm3xK8