Fit fiberglass vertical stabilizer tip, mark where the tip has to be cut. Make required cut. The end of the tip will have to be closed at a later day when temperatures are warmer for fiberglassing. Fit and trim the rudder tip. Drill and cleco the two tip on the rudder and vertical stabilizer. I will install the rudder tip with screws and platenuts. I am not sure what I want to do with the VS tip.