There are  few PE options for bromegrass, which is my main concern in that area,  Annual ryegrass and  Wild oat are also  significant.

 We ( Australia) has the doubtful honour of  leading the world in resistance issues, and for that reason alone we  mix up  every  tool we have. and rotate  chemistry  and  whatever other  weed control option  at our disposal. 
Continual use of one method is a recipe for disaster here.
So yes, on some areas of crop I will use the PE options.

I  failed to mention that there is  Metribuzin in that mix also.