Hi All

MT Propeller has recommended to shorten the TBO for CS props to 1/3 if it has been used for snap-rolls and gyroscopic maneauvers. Ref http://www.mt-propeller.com/pdf/sbs/sb1ak.pdf
I can understand that hardcore unlimited maneuvers may reduce the lifetime of the prop (and engine), but I dont understand why MT is also shortening the calendar time from 6 years to 2 years between overhauls. I wonder what experience and practices that is out there for both experimentals and certified planes, and appreciate comments.

Fly safe
Christian :-)