Folks, I am finishing up a 2.6" Madcow BB FG build, I have sanded both the ID of the BT and the OD of the NC shoulder such that the NC slips in without slop, but I have noticed that the NC fit is tight, and prone to binding unless removed extremely straightly... I am concerned about over sanding either side of the equation and ending up with a sloppy NC fit.. This is my first FG BT/NC build, so I am not sure what to expect here.. All the other NC's I have flown have all been plastic (polystyrene?) nose cones... My first concern is the NC jamming on ejection charge.. Given I am flying with motor eject, I was not planning on ground testing, but the more I think of it, I think I will have to before the weekend... (which means building a charge well and fake motor tube...) My question is this: how have others who have built this kit found the fit, and are there any tricks to FG body tube and NC setups?