Fast
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Pros: Game goes by quicker, possibly funner, get karma & T$'s faster.
Cons: Don't get nearly as many karma as a slow game, Lots of random annoying spam, probably tons of negs, you have to do vetos quick even if you don't feel like doing it, if your nominated you don't have time for a speech or to switch the game around.
Slow
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Pros: You get 15 karma instead of 5 like in quick games, You can have real conversations with people, if you are nominated you can make deals & Have the time to make people switch up their vote instead of them voting in the first 5 seconds of your nomination, You don't have to worry about spamming.
Cons: Your stuck in a game for a LONG time, If you wanted to quit you'd have to wait like 18 hours for someone to nom you, wait for Veto to be decided, and then get evicted before you can get out of the game, If you went to school/work as soon as the 6 hour day change happened and you were HOH you wouldn't be able to nominate and the algo would decide.
There should be Karma in The Duel for 5th and 4th place. Its hard getting there so yuh. Even if its a little. Your a great website owner and thanks for all you do :). U can't handle da truff Sandizzle.
Fast
I'm eating Blue berry waffles & Drinking apple juice! How has your day been so far? 
1-0.
Cause it smell like white people in this club. -walks out- 
"Woo it smell like white people in here" and walk out?