I'll start by saying that I'm still wet behind the ears with reloading. I reload 9, 40, 45acp and .223, out of all of these, 9mm has been the biggest headache for me. Last night while I was ready to take a hammer to my lee pro 1000 (yes I know that's where the problems start, but I'm cheap) I realized something was happening while crimping and seating the bullet. 1 out of every 10 or so wouldn't pass the plunk test.
I took the crimping/seating die out and put it in the single stage press, where I only had to apply a little pressure, because I'm not resizing and primer and problem solved. So after many pulled bullets this has solved me wanting to give up on reloading 9mm.
I just wanted to share my story incase someone else was having an issue.