This error message in `peak_b_field_at_pf_coil()` doesn't seem super clear - it should say what 'it' is more clearly <img width="738" height="251" alt="Image" src="https://github.com/user-attachments/assets/f3d57c1a-d136-4c0e-a3fc-f2a40af6cf46" />
This error message in
peak_b_field_at_pf_coil()doesn't seem super clear - it should say what 'it' is more clearly