Figured out the AI Clock Twister bug and can replicate it and know how to fix it. Weird.

Bug:

AI Clock twister incorrectly setting DRAM skews at high FSB, cmos register storing menu item index select value not updating?

Fix:

On changing DRAM skew values manually forcing cmos register update by changing AI Clock twister setting to another and then back to previous consecutively.

This resets my DRAM skews to the correct values for the AI Clock Twister setting and thus don't have to keep adding advance skew to fix it up!