Ya those seem like good auction prices. I don't have much experience with what actually gets sold at which price and how long it's on the market before selling so I can't speak from experience. I have seem most Black Pastel combos sell for much higher prices then the same combo with Pastel in them. I could list several 2 gene animals off the top of my head that advertise for 200+ dollars more if it's a Black Pastel oppose to a Pastel. In my opinion the 50 male and 100- female is a Pastel price, add 50 to that for a Black Pastel and you have my guess. Of coarse ball python pricing is pretty variable so not much would surprise me.