miguksaram
Master of Arts
Not unless some of it (chuan-fa) influenced the staff form Yoon Byung-in created. I never heard it discussed that he learned anything but empty-handed techniques from his Chuan-fa teacher.
To my knowledge, he (Yoon Byung-in) learned bong sul (Bo Jitsu) from Toyama Kanken and possibly his friend Yoon Ui-byung (Yoon Kwe-byung). Most people don't know this, but Yoon Ui-byung (Yoon Kwe-byung) published a book in Japan on staff technques in the 1930's. He gave credit to his teachers Toyama Kanken and Genwa Mabuni in the book.
R. McLain
I don't suppose you know where to get a copy of that book?