Consider replacing current window stabilizer with this one:

[jordwalke]

https://github.com/gillyb/stable-windows

@gillyb - looks like we have some overlapping code/purposes.

[jordwalke]

I am curious how you figured out how to do this. It turns out it's incredibly hard, and not 100% possible when considering windows that have splits. Have you found the same?

[gillyb]

Took me a while to think of a good solution for this problem, because there's no auto command available that covers all the cases of leaving a buffer/window/split.

What I ended up doing is keeping an object that stores the cursor line for each window/split/buffer you're in. I update this object on every cursor movement. (This sounds like it can slow vim down, but it's only updating a single variable. From my experience it didn't slow anything down).
Then on the autocommand "WinEnter" I loop through all the buffers and align their cursors and the top line to what they were just before the WinEnter command (which is just before the windows alignment moved).

I think the code is pretty readable, I tried to add comments so I'll remember what I did myself :)
But if you have any questions i'll be happy to help.