had to go back and refresh my memory -starts at post 166 in my build... I was mainly focused on not damaging the glass, since I already had a replacement for the gasket. I think the top was all loose and the bottom was still stuck to the glass as it came out. I don't recall if I did it on that one, but with the zip strip type you can pull that out and cut the flap off so the glass is just sitting on the remaining part. At that point you can see where it is sticking and 'ease' it off vs. push like hell and launch/break it.