I agree with Hexxus on that if you are going full archer then the perks you get really make it hard to not kill with 3-4 arrows (most times i single shot 3x damage) and still be in sneaky mode. Saying that though I am more scout like using bows for far ranged enemies and bringing dragons down (only halfway thorugh the archery perks) and then I finish them off with dual daggers (Mehrunes for the proc and Daedric Fire). In close quarters im always sneaking and so tend to get lots of 30x kills with daggers (love those cut scenes). Like I said if you really want to go full on Archer the perks will still allow you to kill even at close range after being detected, so your support weapon really doesnt matter the further you get in archery line. I would consider the enchant on it though, maybe something like paralyze so you can move away during combat and fire some more arrows. The 50% slow time is insanely nice. Finally, in those rare moments when its really bad, to give me a few moments I found Ethereal to be awesome for some quick maneuvering.