Yes signet full-time.
And like I said, I'm usually good with one, but more than that, even after using exe, my evasion goes to complete ***...Worse case scenario I'm popping fan and hitting my all Eva macro, but killing slows to a crawl thus leaving me to aggro respawns and roamers and after that...yeah...
I parse ~70% evasion versus DCs. So, 1 evasion dagger is the max it would take to cap evasion.
Still, with multiple enemies attacking you, it's hard to keep up when they're hitting you 1/5 of the time. Your best bet is to work on avoiding links.