I love my Bow/NB, but there are a few things im wondering about that (to me) aren't very clear.
Specially regarding Bow and some Nightblade skills.

Shadowy Disguise: I use shadowy disguise to bump my crit to 100%.

While using it with Something like Volley (that takes a bit to land on the target) i usually cast Volley, then Shadowy Disguise.
Do my Volley still have 100% crit chance or do i have to cast it before Volley?
Does the 100% crit count for the whole duration of Volley or just the first hit?
And if Volley gets crits for the entire duration, do the crits stop if Shadowy Disguise runs out before all the shots have landed, or do they all either all just crit or not?

Ok here is an "easier" question about Shadowy Disguise with Snipe.
Snipe takes a few seconds to reach the target and 3 seconds to cast.
If i cast Shadowy Disguise before Snipe, it will always fail. because it only lasts 2.5 seconds while Snipe cast time is 3 seconds. So:
If i cast Snipe, then Shadowy Disguise before the Snipe projectile has reached the target, does it get the 100% crit benefit?
This may be pointless, as i have heard that crouched stealth damage is higher than a critical hit anyway (where you would usually use Snipe)

I also use Shadowy Disguise and cast Arrow Spray right after in combat, and keep rotating til enemies are dead. Is there any point in that or am i wasting my time?
Someone told me that only targets hit in the back gains the bonus, but they may have been talking about crouch stealth.

Moving on to passives. Master Assassin.
"Increases damage while stealthed or crouched". Pretty straight forward, but does it work with bow attacks? If so, does it work with Snipe?
The fine print also says "while using assassin abilities" That could mean that only assassin abilities gain the benefit, but i have heard people say that it increases other damage aswell, like daggers, swords etc.
Maybe its just me, but that ability just confuses me.

Long Shots Increases damage versus distant targets.
Thats fine and all, but what is a "distant target". I know enemies who are in your face probably doesent count,
but do they mean "just outside melee range" or "that target just inside maximum range"?

Hawk Eye Increases damage when striking vulnerable targets.
Again, what is a vulnerable target, what do they mean?
The first hit from outside combat? "He sure was vulnerable just standing there not expecting me"
A hit to the back? "He sure was vulnerable in the back alright"
Or a critical hit? "That sure hit something vulnerable"

Sorry about the really long post.
(Think of it like a letter or something)

Sincerely
-A Nightblade