Some queries -
What if the t/r driveshaft failure results in an overspeed. Can this be corrected manually with the fuel flow lever?
Based on Flyting's FM quote, you are going to be flying a low speed (sufficient to avoid weather cocking), you are going to be at the top end of a steep approach and then during the approach shut off the fuel!
Pray tell, how is one supposed to control yaw when selecting fuel off with low forward speed on final approach?