I suppose a picture is worth a thousand words so I will attach the picture of my problem.  Basically I am trying to mimic the top with the bottom.  I am attaching several.  I made the sketch shown on the top and it looks exactly how I want it.  I did an extruded cut up to the surface of the circular face and it worked beautfully, when I try to do this again for the bottom I selected the EXACT SAME SURFACE that I did for the top, and it wants to go to the other side, essentially cuttting through all of it, all other variation I have tried have not yielded in my previous result, please help, this is getting very frustrating.  I am not sure wha tI can do.Thank you.