About DodgeXParry, am I thinking this wrong?

[Stompya]

Ok, so due to the ratings conversion and diminishing returns, gemming for parry or favoring gear with it over gear with dodge is a nono.

But, and this is probably where I might be thinking wrong about this, due to the way the combat table works, dodge covers one part(5%), and parry covers another(another 5%), so if you do let your parry drop too much, as we are now seeing with Ulduar gear, and your dodge gets too high and gets hit harder by diminishing returns, we are actually loosing more avoidance than we think by just adding dodge+parry.

To cut it short, as this seems a bit confusing to describe, what I am thinking is:

If you have 20% dodge and 20% parry, you have 2 rolls on the combat table with (about) the same chance to avoid being hit.

But if you have 25% dodge and 15% parry, you have one roll with a slightly higher chance to avoid it, and another with a much lower chance to avoid being hit.

Is this the correct way to think about this?

[Satrina]

you have 2 rolls on the combat table

No.

http://www.tankspot.com/forums/f63/33093-combat-table.html

[Feanorr]

Plus Parry DR is much worst than dodge DR. Someone made a nice graphic a while back showing than you would need something like more than 30% dodge and less than 10% parry to make parry superior to dodge

[Satorri]

Parry gets less % per rating prior to DR because it has additional effects when you parry, so it is actually a partial threat attribute, something the counterpart to Expertise being a threat stat with a slight aspect of survival.

Parry diminishes faster because the cap used in the diminishing equation is slightly more than half the cap for dodge. That means the value is leveling off earlier than dodge.

That is why people advise against gemming to add parry rather than dodge. Satrina linked the helpful info though, the hit table is a single roll with a divying of priorities. Miss, Dodge, and Parry each take their chunks out of the table and the remainder is for connecting hits.

[shushikiary]

Plus Parry DR is much worst than dodge DR. Someone made a nice graphic a while back showing than you would need something like more than 30% dodge and less than 10% parry to make parry superior to dodge

http://www.tankspot.com/forums/f14/42022-when-parry-better-than-dodge.html