I was a long-time follower of PP (the old one, about 7 years on it) now doing a kind of high-fat very low carb Atkins/PP hybrid--I would actually call it a very high fat very low carb PP for the most accuracy.
PP heavily influences my eating in the sense of the protein requirement and the freedom to choose the carb selections.
My PP protein min. is 60g per day, my PPLP min. is 81g per day. It doesn't seem like much of a difference, but I cannot lose on 81g per day. I found that I had to cut the protein back to the PP-60g and make up the rest of the cals with fat to keep losing. (I refuse to cut calories!)
I also have to be careful of the carbs I choose. Unlike most people, I guess, I won't lose if my daily allotment contains grains. I also have to keep my carbs lower because I do eat so much fat...more than most folks around here.
Larry is right. There is a bell curve under which the majority of people will fall. Then there's "outside 2 standard deviations from the mean." I'm afraid I fall out there in more than just diet, but that is another story!
Some will find that the "norm" just doesn't work, but it's always best to try the "norm" first, and give it a good solid go.
I lost over 30 pounds on traditional Atkins, eating all the protein I wanted (100-125 grams) then I stopped losing, about 10 pounds short of where I'd really like to be. I remembered about PP/PPLP, and cut back to my minimum per Dr Eades advice when I didn't lose for 5 weeks.
You'll find what works for you. Give the plan a good solid go as written and see what happens.