Chris 540.....

Yup its all opinion
I have heard of DA's giving out in a torque roll .
It happened to I think Blaine Austin i think a while ago , and he flys with DA engines , you also have to take into consideration that some people don't take very good care of their engine's , like running bad fuel and not checking them every once and a while .
I think about 15% or more of all engine failures DA , 3W , and all others related are caused by people who don't take care of them .