I was asked to carry out this manoeuvre on my RoSPA 'check drive' prior to my test; and it was at that time also totally unfamiliar to me (only 25 years driving) and I felt uncomfortable doing it.
I was even doubtful of the "legality" of it, but was more uncomfortable with the lack of vision; it was a residential street, with high foliage coverage on the corner blocking most of the view.
My tutor pointed out there was a Highway Code rule which would help me with this (and other reversing scenarios with limited vision) - which I had to think about a while before it finally clicked and I asked him to guide me round the corner