I'm about 95% sure that my old spider(this is my second one, and third top install) did NOT have this insert in the top, and I don't see mention of it in any of the write ups I had read to get ready for doing the job. I did notice that my new top(from GAHH) had a provision for this to piece to slide into, but assumed the gap /slice in that fabric was to mark center.
Am I losing my marbles? Are these usually tossed by people missing them like I almost did?
![Image](https://i.imgur.com/oTjBhow.jpeg)
![Image](https://i.imgur.com/gLfJv0f.jpeg)