We don't want to lose you, Rick, so I promise not to enslave you and make you shatter your own spirit in front of your friends, again.
As a fellow 10%, I make no such promises however.
That silliness aside, a bow scout can make for a difficult to kill person. While backstabs won't ramp your damage as fast as profs for longbows/crossbows, it will add to your bow damage. I'd recommend 4 WP - Parry x2, 4 Backstab - Dodge, and alternate. Flavor to taste with PTD skills of choice (if you do take PTD, add Riposte to the fighter skills to counter-riposte).