Posted on 28 December 201411 January 2015 by JonahTailcone Deburring / Dimpling. Deburring and dimpling tailcone parts. It’s more boring than it looks. Cynthia also helped, but sadly, she had given up and was inside napping by the time Jonah took pictures. Berck: 4.5 hours, Randy: 4.5 hours, Tracey: 4.5 hours, Cynthia: 1 hour.