This is so useful NaoMika! I was just thinking of planning to reach really early to snag a good standing location!
I got my tickets through e+ (saw it in your other post :-) ), and it doesn't indicate the [整理番号], oddly! I would think I'll have to head over early, let the staff scan the QR code to know my number? Wondering if you have any experience with this?
Also, I'm also wondering if there are concert etiquettes unique to Japan. Are there things that are impolite/strange when done in a concert in Japan, but otherwise normal in other places? E.g. holding up signs, singing along LOUDLY... Don't want to come across as rude :-)