I just bought the book. It is very detailed 600 pages + . I would recommend it without reservation.
However , he recommends a snatch pull exercise from the mid-thigh. I corrected myself to lifting from the hip bone after listening (reading the translation)Aleksey Torokhtiy Olympic Champion at 105kg .(spelling ) on youtube. I managed a fair amount higher on the pull like this. I understand there could be a number of reasons for mid thigh pull for snatch/snatch pull. I think I would find it confusing switching.
Any have any opinions on varying the pulling position?