[Juevento]

I've noticed that you see bumps in dmg at different threshold attack levels. For example, if I get my attack above 1250, my dmg output goes through the roof compared with an attack rating slightly lower than 1250.

As for weapon ratio, I haven't done a full study on this yet, but my belief (supported by the evidence I've seen from my parses) is that for two weapons with the same dmg/dly ratios, the lower delay weapon will out damage the higher delay weapon. This is due to the non-linear scaling nature of baseline dmg of each weapon.

So for your example Swiftwind should out damage a wurmslayer because it's got more chances to swing and should output more base damage.

There are a bunch of crazy people who think this works differently, but I haven't seen any evidence contrary to my belief.