Well the molds are the most difficult part of any carbon fiber product. This mold was quite difficult due to the many curves, and changes in the hood. I would say on average a mold takes about 20 hours to make from start to finish. I have a mold right now that I'm working on for Warnert Racing/Factory Can Am that is probably going to take about 40 hours. I can't say too much on it yet, but its one tricky little peice!