Just a warning - be very careful of putting Shield Swipe on your Fast Blade macro.

I did this for a while and it felt awesome soloing, but as soon as I entered a dungeon with it it became obvious that it can be a problem. If you're tanking 2-3 mobs at once your block will be proccing a lot, which means Shield Swipe will be up A LOT. As a result I found that sometimes I simply wasnt able to get Savage Blade/Rage of Halone going at all because every time I tried to do the Fast Blade I got another unwanted Shield Swipe.

Put Shield Swipe on another key and use it when you see it's up. Unless Shield Swipe has some extra Enmity generation on it then you may find yourself nerfing your threat rotations by having it proc too much.