Double checked castle nut and cotter key installation befor skinning. Inspected and cleaned fiberglass wing tips before final installation. Note the plastic tubing used as wiring conduit-it is 5/8" thin wall plastic drip irrigation tubing that will protect the wire and allow me to remove/replace wire if necessary without removing wingtip. I left enoug wire to remove wing tip light if necessary but I should never have to because the Aveo Flash I installed have a life time warranty. I did not shorten the wing tips at all