Lots of oil, and 'working' the leather - manipulating it gently - will 'bring it back', if it's not too far gone. If it's too slippery for you, I'm guessing your 'seat' needs to be a bit better. You can use a 'seat saver' - a sheepskin(or some sort) pad that you can attach on top for a 'non slip' surface.
I really like Oakwood leather conditioner. I too have a very slick saddle, and applying a good buttering of this regularly keeps it in good shape and adds grip without making it feel actually "sticky." I like it for my tall boots for the same reason! It has oils and beeswax in it.
Thank you all for the responses. I will hit this hard with a few of the leather cleaner/conditioners you mentioned to see if it softens the leather at all. I have not been able to try it out yet due to the slippery-ness.
Thank you very much!
Hey all - finally getting around to cleaning this saddle. I’m using the rough side of a sponge and glycerine saddle soap and and some water. I’m not sure what color the saddle should be... I am getting down to a lighter color but I don’t know if that’s what I should try and achieve for the whole saddle?