I think I have Fryer's single yoke complete. I worked with him today on pulling his sled and then pulling his tractor tire to make sure the yoke set right on his neck and into his shoulders. I was very pleased and he didn't show me any discomfort.
I plan to go back tomorrow and finish the logging we were working on when the first yoke broke. I plan to watch for Fryer's head placement when he begins to pull on the logs, and to make sure there is no choking to indicate tightness or bow positioning.