Three quick questions regarding an e-series s-bend shorty, although the first question is for any e-series pipe. 1.) On an E-series, do you count the sound deflector, spark arrestor or end cap as disks? The WB manual doesn't indicate one way or the other, but I'm leaning toward, no only a blank diskd is a "disk". 2.) What have other riders found to be the optimum number of disks for the strongest bottom/mid with YZ timing? Can is matched to a WB tapered header. E-series Shorty can. Sound output- What number of disks is a happy medium betwen sound output and power? Is there any accessories that will lower the sound w/o decreasing power? I use the 180 degree (wraps around both sides and top) sound deflector currently, but I'm looking for something even quieter is possible. Probably not, huh? Thanks, all!