If I had a button that could stop time, I would (selfishly) give it to you so that you'd have all the time in the world you need to write this.
Seriously though, this is my favorite IF! I absolutely adore how complex and 3-dimensional you've made each character. I know it's done well when I feel I can't trust anyone, including our beloved Watson! Saying it right now, both Watson and Hamish are plotting something fr.
SPOILERS FOR 6.2 below
ALSO! When I read IF's, I keep notes to remember the MC's traits and what I thought about each character. And when Lestrade called my Sherlock out for thinking he was a puzzle (which I wrote about him in our initial meeting!) I flipped out. The bar scene has got to be my favorite. Plus I was quite happy when he gave us his journal in 6.2. Though... now I am truly worried that my Sherlock won't view him as a puzzle anymore, but just another finished case. I'm very worried... so um yeah! Keep up the great work!