Casey- let me start by saying, "please don't take this the wrong way."
I think you are not finding or getting the answer you're looking for because this is one of those instances where the answers you're looking for have not been premade by the manufacturer for everyone to have and use. This is a situation where splicers have assessed the rope, the "official" splice, and the application and then created a version of the official splice to fit the specific application.
People are hesitant to give the answer because it would be an unofficial answer and in a way, there is some sort of liability (maybe not in a legal sense because I'm not sure anyone could be held legally liable for advice given on an online forum...but that's a whole 'nother conversation) if they go out on a limb.
So starting from there, let's look at the 16 strand splice and how it works. The 2 major aspects of the splice are the taper of the cover tail, and the crossover.
The taper is where the strength and security of the splice comes from. You take out too many strands and there won't be enough compression to hold the eye together.
The crossover merely serves as a transition from the cover tail (which will now become the core) to the original core strands inside the rope.
So to make a short eye-eye sling, you must replicate those two components.
I think most people in most cases will maintain the same taper pattern (marking every 5th pair of strands) for the two tails, then modify the crossover as needed. For starters, it's convenient to keep the crossover at 11" so that you can just proceed with the two cover tails as you would when doing the normal splice. As you get better at it and understand the physics and process of it, you can modify that taper without affecting the strength of the overall piece.
So as you're asking for measurements, I think the responsibility falls back on you. Determine the overall length of the finished piece you're looking for here, then lay the rope out and verify that you have enough room to do everything you need to do.
There's a very good chance that the first one you try will turn out to be absolute crap. Make a note of what you did on the first one and fix the errors for the second one.
Once you start doing it, I think you will find that we can help you with specific roadblocks along the way.
love
nick