far to OCD for me lol. Good luck on the book Danne but i truly don't see you getting any huge benefit from it you have already mastered your techniques so you have no need to mimic someone else. Those wallets Danne makes are some of the best I've ever seen I don't have the want to, patience, eyesight, or customer base to even think twice about making such a thing.
Leather as is so with blacksmithing is centuries old What we have learned has been forgotten and relearned more times than we can count. We humans fool ourselves thinking the old techniques can be improved upon , forget them, turn to more complicated methods then pat our selves on the back when we discover the easier (forgotten) way. Kind of like "sustainable" farming LOL.!