I was just wondering how many people are running
The white brothers E-series?And how many disc are
they running?Any information would be greatly
appreciated.
Thanks.

 

14 disc with Pro Design air filter. Haven't jetted it yet but throttle response is definitely improved. For 14 disc you will need to get the longer end cap screws from White Brothers.

 

I'm running 12 discs,I've tried 8,and 10 discs,
but 12 works the best. This is what came with the
system.The only promblem I have is if full throttle is applied suddenly a slight hesitation is noticed other than that it runs fine.

 

Slight hesitation = lean condition. May want to consider go up in main jet sizes or reduce the number of discs. There were already lots of posts on jet sizes in this forum so I won't repeat them :-)