do on-hit % chances stack?

[chronomancer]

If I've got for example, a sword, belt, and helm, that respectively grant a 50%, 30%, and 40% chance to blind a target on a hit, what is my actual chance of blinding a target? Is there any benefit of having multiples of a single effect?

As an aside, it would be awesome if the character sheet reported probabilities for the more common effects.

[Mex]

1 - (1-0.5) * (1-0.4) * (1-0.3) = 79%

Assuming they each are trying to apply the same effect, that is the chance, which will then go against their save.

[chronomancer]

Excellent... so they DO stack (but not additively of course), I couldn't tell from simple testing, and reading about some non-stacking buffs (projectile evasion etc) had me worried that weapons might suffer the same fate. Glad to know that my extra equipment isn't going to waste. Thanks!

[Zeyphor]

on hit stuff such as daze blind etc does stack, but stuff such as Talent on hit(spell): Bone Spear(Level 3) does NOT stack
instead of having a 20% chance to use bone spear on offensive spell use when you have 2 skeletal claws equipped, it'll have 2 10% chances to bone spear on spell use