Well, I did the easy side first,and now I'm taking a break. So far so good. I don't know how many retainers I've lost, but it's a few, anyway I bought a new box of them. I'm using the rope method to hold the valves up and I have to say it's working pretty well so far. I've got my compressor on loan and didn't want to wait until I get it back. I started out with 1/2" yellow rope and it worked fine for the first cylinder, but after that it didn't want to go in the spark plug holes anymore. So I ended up taking one strand of rope off of it (has three stands) and that size seems to be just about perfect. Feeds in good, and holds the valves. I've had to readjust once, but after that no problem. The Kirbans valve spring tool works great also. Anyway, I know a few people on here are getting ready to do valve springs this way, and I just wanted to let everyone know how it's going.