Perhaps someone can explain this one to me. A few years ago I got stuck at an airfield with a knackered starter solenoid, a local aircraft mechanic come over and said he would prop it for me, however prior to getting started and after making sure the magnetos etc. were all off, he ran the prop thru a couple of cycles listening for the impulse click and noting the position of the prop. I cant remember exactly what he said bit it was something along the lines of he was checking to see that the prop had been installed in the correct position i.e. installed correctly for hand propping in relation to TDC. Does this makes sense?