The search for the correct amount of split-lock misery

This is not possible.

This same suggestion *also* came up during the kernel syscall emulation work. It was suggested that instead of having the kernel reroute attempts by a program to call a windows kernel syscall, wine could simply scan for and patch any such attempts.

This is not only hideously complicated and unreliable, it also doesn't work at all with exactly the class of programs we're interested with: Games.

They frequently include a wide variety of very gnarly anti-tampering features which cannot be automatically overcome. It is for this reason wine seeks to emulate the environment around the program, and never ever attempts to reach inside it.