LFR LootFollow

Sorry if this has already been covered but i never can find stuff in the forum search anyways... What i was wondering was if there is less loot in one than the other will i have less of a chance to get an item?? For example, Lei Shi in ToES has 4 items listed under disc drops, but 6 items listed under shadow drops... Soo is there a better chance at winning something if im shadow spec cause there is more to choose from?? Or is it like you have "x" percent chance of loot, then it picks a random one off the list? Reason im wondering is cause the only loot i need from that boss is the tier shoulders, so im thinking que as disc would give me a better chance at getting them cause there is only 4 to randomly select from... Any idea if that would be best?

Ps. Sorry for any typos on my iphone cause my pc wont let me log in cause i forgot my password but it just auto signs me in on the phone lol!

RNG is hilarious. Had a run through Scarlet Monastery on my Monk where I won every single "Greed" roll. All the BOP drops, all the BOE drops, except for the ones where someone rolled "Need", of course. All the Greed rolls were mine!

I'm thinking of hitting one of the many casinos now located in Stormwind, but first I'm going to respond to this mail I got from a long-lost relative in Nigeria.