Hey guys, I currently have a Mossberg 930 with Williams Universal Slugger fire sights. I'm seriously considering a move to the FF3, Vortex Venom, or maybe even a Simmons Prodiamond. If I go with either red dot, I will use the Burris plate that allows you to mount directly to the receiver without needing to use a rail. With this set up, I'm assuming I will need to remove the Williams sights because it looks like they would be right in the middle of your view when looking through the FF3 or Venom. Is that correct? Also, what if I went with Simmons Prodiamond with a DNZ low mount? Would the fire sights still be seen? Thanks!