Thanks to this board I made my own hop spider but simplified it with a length of 1/4" copper tubing I had laying around. I brewed a Dogfish Head 60 min IPA clone this past weekend and it worked great.
I'm not sure if I needed to do this, but I kept lifting it up a little bit to get the hops to submerge better. I put about 5 marbles in the bag for weight.
Thanks again for my new favorite brewing gadget, which I didn't even know existed until a month ago.