Ha Ha! I feel ok putting my tail rotor somewhere that I cannot see because I have already checked there before hand.
Ha Hah indeed, good advice for all pilots with their 'tail'.
Distance perception was a problem for me in the beginning with one slightly lazy eye. I had to constantly do distance comparisons against the height of trees or length of runways etc. It was very hard to 'see' a profile.
Then at three hundred hours I knew exactly where to put the machine with regard to being in the best positiion for shifting cattle, but how to get it there? That took a while. Go round again get into wind again try better next time etc.