So I recently purchased a 4 cavity 9mm hollow point (with all the extra pins, also no lube groove) from MP Molds. So I take it out of the box clean it real good and install the penta pins and used the provided lube. I cast around 40, then let the mold cool off and did that 3 times. This is where my problem starts, I fired up the pot today to cast some hollow points. I can not get them to come out without wrinkles, and the bases are not properly formed either. No matter what I do, I have yet to cast one good boolit with this mold. I know I'm doing something wrong, this is my first brass mold, I'm just looking for some help. I'm going to work now and will be home at 10 to reply back to any questions you may have for me. Thanks in advance for any help.