Let me explain my experience, which I've seen repeated many times. I am a HUnewearl at lvl 190, I've got max ATA, with smartlink and 502, using a Hell Diska with 40% hit. I have very poor success even with enemies that are supposed to be susceptible to hell weapons, like Dolmolm and Gee.
Many times I will see a ranger roll in with a Hell Needle and start mowing those same enemies down. Now if I'm understanding your explanation of the ranged attack accuracy trick correctly, it won't work on needles. I know rangers have more ATA naturally, but I've got a slicer with 40% hit, and they have an ES weapon with no hit. That's where my confusion comes from.