Obviously have too much time on my hands waiting for the Shelby to get back from the frame shop. But as I was planning the design of the cage, I got to thinking about the window net. If I install the net per GCR 17.30 there will be an opening about 17" tall. I would prefer a larger opeining. I can extend the opening to about 20" by purchasing a different net, put would like a little more. How have some of you secured the bottom rod for the net to the door bar of the cage to make the opening from the top of the door bar to the roof bar larger? Thanks.