definitely put 2 Doppels unless ur planning on going full flee for farming xP
I agree with moon drifter.
One dop will force you into a high agi build.
Figure out what build you'll be using, then work out a weapon from that?
If you're 100% certain you'll be using a high agi build, open up a slot for something else by dropping a dop card.
As far as bows go, DDTS for max damage.
with a sidewinder, DDSsw will give you the best damage (not by much). Rogue's don't get the break point of 3xx atk you need for a TG card to be more effective.