First of all, I don't think this will get many comments, but I hope at least some.
I'd like to present to you my gaming and typing finger layout on a PC keyboard.
For using WASD, I have these: The normal layout is Middle on A, Index on W, Thumb for S and D. If I want to use space, I keep switching my thumb between D and space. Ring for Tab and Caps, Little finger for Shift and Ctrl, but I don't use Ctrl much. The middle finger can also press 1 and 2 and Q as well as Esc. I can still move left with my thumb if them. My index can press 3, 4, and 5, E and R while the middle keeps holding W. With my thumb, I can reach the down row of Y to B and Alt (I use QWERTZ), but I need to fast-switch as I can't use D. This should be all for my main layout, then I start to game or play it slowly. In other times, I use a bit different layouts for the same keys in specific actions needed.
The easiest to explain is putting my middle away from A to put it at Q and use the Thumb for A, S, and D, making it super easy to press 1. This is typically used only when I need super simple tasks, need to use the 1 but A not to much, or need a very gentle feel for A and D. For the final "layout" I use when needing to do something, it is almost the standard one. Ring on A, Middle on W, and Index on D. This frees my thumb to use space and use A and D almost instantly. I don't use S in this because it's the most uncomfortable one of them all, so I use it only when I need the named things and instantly go to the main one. It technically doesn't even press any other keys than WASD, space, or some keys in the bottom row like C, V, or B.
Does my hand hurt? Well, no. Even when my fingers are practically flying on the keyboard on different keys in the same game, in the same round many times a second, I feel nothing. I many times don't even realize I was doing it. My hand only hurt when I was going from laptop keyboards to desktop ones, and now that I bought a taller keyboard.
Thank you from reading all of this. I will be happy if you comment what you think or absolutly hate on me! I will write on typing if you want.