Hold on. I don't think that you should be using a figure 8 knot in amsteel. There are very few knots that are safe to use in amsteel. This stuff is very slippery, and does a very poor job of holding knots. Splice an eye in it and pass the running end through the eye, like Kayak Karl showed. I would hate to hear of you taking a fall.
"Interesting! No, wait, the other thing.....tedious!"- Bender Bending Rodriques