Dark Hand Wraps Help DPS

We are in SOD... are these still worth using for the 5% mod?

I think weapon skills just increase your attack by a little bit? Maaaaaybe accuracy but assume that's capped or huge diminishing returns at high skill lvls.

I've never heard of high lvl people using that kind of thing but not sure that gives you an accurate answer. Could always do a long parse with and without it for details.

The biggest gain is the accuracy you get from the skill bonus. I remember reading its something like 2% dps increase for those gloves, but what else are you getting any dps increase from in your glove slot?

Level con plays into accuracy behind the scene (not visible skill gain). Likewise does skill play into the hit calculation?

Not really. Compare the gloves:
https://everquest.allakhazam.com/db/item.html?item=12897
https://everquest.allakhazam.com/db/item.html?item=114381

Focus effect, Heroic stats, HP/Mana regen, +4 ATK, Purity, +800 HME.
All combined definitely outweight the effect of +20 to H2H skill