I believe that Silver means you'll need a 5th if you are mounting the rudder servo in the tail??

Otherwise I understand you need a 1.5" double servo arm(or 3" total) if going with a pull-pull for the rudder.

FWIW, I remember Tom saying something to the effect that the Airwild Servo arms do not fit as tight as they should on an 8611, something to think about if you're using one for the rudder. Apparently the SWB arms are a better fit on the output shaft.

I am thinking about using Central Hobbies' Carbon pushrods with titanium ends for my Edge. Would this be a good improvement over what is included in the hardware kit, or are they not necessary??

Come on Thursday, hurry up