'The problem' is archery is so good, I really have yet to feel the need to want to use a dagger. I think I may have used it twice for a backstab and I'm level 21.
If, on the rare occasion I don't get a one hit kill (OHK) with a bow I just fire again, and short of standing outside, in the middle of the day, with no cover, I'm never discovered before I've fired another arrow in them to finish the job.
To max the first one-handed perk (armsman), it'd cost 5 perks, then if I wanted to dual wield daggers there's three more perks. I'm really wondering whether I should consider spending those 8 perks else where such as the archery perks I wasn't going to take e.g. 'Ranger', 'Quickshot', and 'Bullseye') which would make archery valid in open combat as well as sneak.
What are your thoughts?
(1) Have I wasted the perk point on assassin's blade by not purchasing any single handed perks?
(2) Should I consider the 5 armsman perks to use daggers but be safe to ignore dual-wielding as a compromise?
I do admit hagravens have caused me some trouble (they have insane amounts of health and need 3-4 sneak arrows), especially when encountered in-doors. Having said that, I generally remain undetected, remaining in a shadowy corridor to snipe, and often the hags tend to stand facing the door in a well-lit room so I question if a dagger would be viable in that instance.