sorry i updated it
http://www.wowhead.com/?talent-bc=VZVVVoEzh0RZchhhhc
talent tree is empty on your link.
I think this is what I'm going to try, but 70 is a long way off.
Played around a little bit with different specs but couldn't get rid off scatter shot.
http://www.wowhead.com/?talent-bc=VZEb0RVzhZ0GchpcbuVuh
or
http://www.wowhead.com/?talent-bc=VZE0MRVzhZ0GchtcouVuh
or
http://www.wowhead.com/?talent-bc=mZE0MRqzGZ0GchtcouVu
It's only 10 levels. Pretend that you are doing the pvp grind, only getting to 70 will be much faster than getting to grand marshal i think.