Nintendo WFC will shut down in May 2014

[JMC47]

No. You do not need to be running it full speed, it doesn't matter about the PRNG or anything. Every Single Game I tested works over netplay. I've had 30 second freezes (due to network) and the game will still be synced, as well as 500 ms ping using a python script to purposefully drop packets. As well, my laptop can't play some games full speed, but they still sync. It's stable enough that I can play a long winded RPG with friends like Tales of Symphonia without issues.