With respect to pitch trim runaway training, my Tucano currency requirements call for a landing with full nose up or nose down trim once a year. I have done this in the aeroplane but we normally do this in the sim. I am currently doing a PC21 type rating, and flying at medium level and selecting full trim in each axis in turn and varying the IAS to experience the resulting control forces is part of the syllabus.
In SEP types, perhaps this should be part of differences training.
Rgds
L