Other than during instrument training and an FAA approved exemption, single-yoke aircraft cannot be used for any flight instruction.
The first exception, in FAR 91.109, allows instrument instruction to be conducted in a single-engine aircraft equipped with a single, functioning throwover control yoke as long as:
The Bonanza/Baron/Travel-Air Pilot Proficiency Program, Inc. (BPPP), affiliated with the American Bonanza Society Air Safety Foundation, holds an exemption allowing the use of single-yoke equipped aircraft (single- and multi-engine) for recurrency training. The exemption is valid only during approved BPPP classes. Contact the American Bonanza Society for more information (316) 945-6913 or visit www.bonanza.org.