"It has been a great experience working-out with Jenner," Obuya told AFP on his return home from Australia.
"He's a very resourceful coach in leg-spin and was ready to help me. I believe I have gained a lot from the intensive training."
The 23-year-old Obuya had suffered the frustration of poor form and confidence coupled with a string of injuries that had affected his performance since his great exploits in the 2003 World Cup where he took 13 wickets.
Obuya said he would continue the same training regime from instructions given to him by Jenner, who is also credited with turning around the career of another leg-spinner, Anil Kumble of India.
He said he hopes to return to playing for his local league side, Nairobi Jaffreys, this Sunday.