Garry P.A. had a miss print sorry . Yes I spoke to Tim and I have a good understanding about what he is doing and I also spoke with Air hog . If I was not going to make this a dual purpose rifle I might have gone with one of them . Both of them tune for a one fill, one pellet , optimum count rifle . And if you change the settings the tune is out the window . It might work well for most people but as I said I plan on this being a multi task rifle . I still have the Ein Jin pellets that are top of the line so I am not concerned about it . Also pellet molds can be made as well .Marvin