isocleas2 wrote:Do drop items have a higher chance to proc than crafted weaps with player made procs? Assuming the drop and crafted item are same speed. I don't know if its true but it feels like they proc a little more often.

GRAB BAG - MAY 16, 2008
Q: I was wondering, if there is any difference between the proc rates on different chest pieces? I've heard that the Galladoria weapons and armors proc more often than the Dragonslayer gear.

A: Knowing all the ins and outs of armor procs The Lady of the Jewels says: Some armor pieces will have a higher chance to proc than others, even if they are the same type (i.e. both are chest pieces). Proc rate can vary based on the items armor factor, quality, and bonus level. The Dragonslayer armor, for example, has some of the highest proc rates because it is difficult to obtain and high in bonus level. ....

Grab Bag 24 february 2008
Q. One of the reasons weapons that drop off of the new dragons are so highly prized, is because of their nifty procs. People claim that those procs go off much more frequently than on other weapons. I've always been under the impression that all weapons with procs had the same base chance to go off, and that nothing could modify that chance. What is the percentage chance of a weapon proc going off, and is it consistent across all weapons in the game? Do dragon weapons really proc more frequently, or does it just seem that way because some of them have two proc effects?

A. Giggling giddily the Lady of the Jewels explains: Reactive procs on weapons and armor do vary in their frequency depending on the item. Armor proc frequency, for example, takes into account how often that piece is likely to be hit in combat (boots are typically hit less often then a chest piece).
Weapons can vary as well, but it is a very slight difference and is based on that item's level and difficulty to obtain. The dragon weapons appear to have an average chance to proc for their level and rarity. To give some perspective, they have the same chance to proc as the champion weapons.

Genjiro wrote:...
This being said, e.g. Midgard items could have an overall lower proc % chance since the realm
has access to celerity which increases the attacks per second which increases the average proc count even the items
base proc % chance is lower. (I do not know this!)
...

Is it true that every/certain armor and weapon pieces have different proc rates compared to others? I've heard that some meth fangs and timeless chest pieces have a much higher proc rate than others, or is it just RNG?

Offensive and reactive proc chances are set on each individual weapon or armor piece so it’s entirely possible that some items do have higher or lower chances to proc but as a general rule we use the following proc rates:

Reactive armor or shield procs: 10% chance
Offensive 2-handed or 1-handed weapon proc: 10-15% chance
Offensive dual-wielded weapon proc: 6-8% chance

Looking at the Timeless chest pieces and Astral Mephitic Fangs specifically, they each have proc rates in line with the values listed above.

With that in mind, if you do see an item that seems to have much higher or lower proc rates than what’s listed here, please report it as a bug and we’ll take a look.