He also notices so much it's hard to toe the line of being realistically Sherlock but not overloading the story with random detail that he would take in.

Yes! Any time he's not listing random detail I feel like he's OOC. Though it can work to an advantage when you're showing what he's prioritized as important to note. Like in Scandal when we get that John hasn't called his sister. It means that Sherlock had to remember there is a sister and remember what John looks like when he has spoken to her, in order to know that he hasn't. It's a lot of trivia for someone who doesn't care.