[ProfessorM]

Time. All the steps involved. They are a piece of cake to actually turn and machine. Really pretty easy to do the whole thing if you have mechanical ability but then you got all the holes and eye counterbores and sealing and priming and painting and hardware and assembly and epoxing and wiring. I am sure I forgot one or two. Lots of ways to screw up along the way. You also have to buy all the hardware and wire and weights too which are getting more expensive every year. None of this is hard just lots of steps which takes time if you want a nice looking product. Once you start into this you will realize why the really nice plugs are so expensive. All I can say is try it and find out for yourself. Paul