Hey everyone I downloaded NBspeedhack and am using it with the NB bypass and im currently speed hacking at 6.0 with no d/c(hopefully).
What you have to do is start of with it around 1.4, enter a game.
A few minutes later you can start increasing it by .5 every minute or so, but you have to increase the sleeptime by a few each increase.
Keep doing this until you get to 6.0, you can try higher but I haven't.
Im currently at: 6.0 and 23 Sleeptime.
Enjoy go at 600% speed
EDIT: If you use sprint I find you will d/c if it's used often.