I only have a few pizza specific books (Camp, Roberto's) but I think that Elements (and his couple of YT videos) are far and away the best presentation I have ever seen and has improved my techniques quite a bit. I've been doing it at home for a couple of decades and my wife did a couple of years running a place, so I was not starting from scratch when I encountered Elements. Perhaps that let me get the best from it. If i were to recommend just one book Elements would be it.
That said, unless you're standardizing production for a business staffed by kids (Pizza Hut for example) you're looking at art as much as routine, and you do have to get a lot of it right on your own, there is no way someone can just give you a simple set of steps that if you follow them in YOUR kitchen they will give results exactly like what the author said. Practice.
I never noticed an odd hydration, if there is one I'd guess it is for a purpose like Grandma, the likeliness of a 70% to be launched from a peel is I think slim and I doubt it appears in the book. If you look at Forkish's Adam Kuban Bar Pie (a recipe he says Kuban approved to him) and Kubans' more recent YT on the subject, they are quite different... art.
This site is indeed the best reference, but depending on the topic somewhere near a half of what you read is simply opinion and thus perhaps not lies but certainly not truths. Totally divergent opinions that you will find here. Tonight I had a bunch of button mushrooms that needed to get used up, and lacking any other use I decided to put them on a pizza rather than into the trash. I never ever put mushrooms on pizza so had to learn. Just search mushrooms here and you will see folks insisting on gotta be fresh, should be canned, dried, or just drained, or should be jarred marinated, if fresh saute them first, roast them first, go raw etc etc
Because I do not like toppings that add much liquid I did exactly the right thing and sliced them 5/16" and held them in a 150 F oven for half an hour it it worked out perfectly. Any other solution would have been wrong. My point just being that those here that actually understand your question, knowing if you are using a stone or steel or screen etc and what goal you have and what results you already get, can actually give a good opinion as to what dropping a percent or (this a Kuban concept from above) maintaining "effective percentage) by substituting some oil for water will do. This is more pizza science and what this site is rich in and why it is the best resource in spite of the fact that a lot of what appears here is simply wrong.
Meanwhile, take Forkish's advice, "flour is your friend and a crust that has formed well and needs slapped is way better than one that stayed too sticky because you were scared to load it with flour." My doughs don't vary a quarter percent hydration, and the thought of additional flour seemed unimaginable. Most people are not that OCD I suppose, but Forkish showed me the light, and it improved my product a lot. Even when you make just 40 or 50 pies a year getting that right is a triumph. I owe him that and though it is a fundamental lesson, I had always missed it...great book.