When parked in the shed,I put a chunk of 4x4 in the saddle so I don't have to count hits.For field use your could tie some rags to it to hang down where you would see it just as you hit it.
Put taller rear tires on my l2's - is now too high for me to hit my head on the unloading auger(steering through mud is improved as well, which is why I actually did it; matches up better with the tall front tires I have also).
ON the f2 and the l2 I had I removed the saddle bracket and remade it so it was just above my head when it was folded in. I never had another problem with it.