Block, block and more block

Im wondering if anyone could tell me the answer to this.
Guildwiki says that blocking stacks up multiplicately so if a player has 2 50% block chance effects on them they have a 75% block chance.

What would happen if i gave a player who had 75% block chance from a stance for example an extra 50% block chance, would he have 100% block chance and block everything, or is there a hardcap to the amount of total block chance you can get.

The way I understand this is as follows

1: You give the 75% chance from a stance
2; This fails (25% chance)
3: The 50% chance kicks in against the 25% fail rate (ie has a 12.5% chance of blocking)

Total chance of blocking is therefore 87.5%

Silz is right. So technically 100% block is unreachable unless one source is giving you 100%.
But the odds that a blinded wammo hit a ranger using whirling defense are low: .10 (blind)*0.25 (hit throught whirling)=2.5%

ofc as warrior or ranger you dun have to worrie about block.as both of this classes have excellent skills for get through any block rate.

And Yet when your low on health they somehow still manage to hit u with that 1 attack. EG. My running away from a melee target i had blinded and with Whiling on And yep in such situations they always seem to get that 1 or 2 hits in that finish you off even when they only attack with 2 hits :S im sure those critters Hax either that or i really really have bad luck (hmm actually considering the kinda drops i get id have to go with the latter :P)

I recall reading somewhere that when running, any attack that hits you from behind will be critical. Maybe it also affects the probability of evade/block?

Warriors and Rangers don't have exellent skills to get through blocking. They have skills for it, but those are far from exellent. Actually they're all pretty baed.

And crits don't affect block rate afaik.

That would explain ALOT...