About removing the Queen Ant Ring = when you remove dmg, you need to test again. Simple calculation, the 20% on weapon but also -15% from the ring = +5% critical dmg at the end. What you said you get much less adena 19 mil less per hour.
In Storm isle you need to run to mobs, take target, start to hit, distance between mobs can be different, if you pull all mobs to you more or less should be more efficient, but yet again so many variables, terrain, lag, atk speed lag, go and do simple flat tests.