Time Machine Proper System Exclusions

{
    SkipPaths =     (
        "/Applications",
        "/bin",
        "/cores",
        "/installer.failurerequests",
        "/Library/Application Support/Apple",
        "/Library/Audio",
        "/Library/Caches",
        "/Library/ColorPickers",
        "/Library/Components",
        "/Library/Compositions",
        "/Library/CoreAnalytics",
        "/Library/CoreMediaIO",
        "/Library/Desktop Pictures",
        "/Library/Developer",
        "/Library/DirectoryServices",
        "/Library/Documentation",
        "/Library/FileMaker Server/Data/Databases",
        "/Library/Filesystems",
        "/Library/Frameworks",
        "/Library/GPUBundles",
        "/Library/Graphics",
        "/Library/Image Capture",
        "/Library/Java",
        "/Library/MessageTracer",
        "/Library/Modem Scripts",
        "/Library/OpenDirectory",
        "/Library/Perl",
        "/Library/Printers",
        "/Library/Python",
        "/Library/Ruby",
        "/Library/Screen Savers/Default Collections",
        "/Library/Scripts",
        "/Library/Speech",
        "/Library/User Pictures",
        "/Library/Video",
        "/Library/WebServer",
        "/Library/Widgets",
        "/sbin"
        "/System",
        "/usr/bin",
        "/usr/include",
        "/usr/lib",
        "/usr/libexec",
        "/usr/sbin",
        "/usr/share",
        "/usr/standalone",
    );
    SkipSystemFiles = 0;
}

When you choose the System folder in the Time Machine Options as an exclusion, it asks if you want to exclude just the System folder or ALL System Files. If you choose the later, it adds /System to exclusions and sets SkipSystemFiles = 0.

UNFORTUNATELY, this settings seems to EXCLUDE /usr/local, yet INCLUDE:

/usr/bin
/usr/include
/usr/lib
/usr/libexec
/usr/sbin
/usr/share
/usr/standalone

Which is really the OPPOSITE of what it should doing. /usr/local is NOT System data. So, I no longer choose to exclude all System Files, and have instead crafted the above exclusion list, which does the right thing for me.

I'm also excluding the FileMaker Server Databases folder, as it's recommend that you NEVER back up the live database, rather just use the backup schedules.