True ^One thing you have to watch with clinch knots is the size of the hook. If the hook wire diameter is a lot bigger than the tippet, the knot will slip. I'll use a non slip mono loop if I'm tying a smaller tippet to a larger hook eye for some reason.
Skip clinches or davies for big streamers or any bigger fly. You can't go wrong with a palomar knot. If not, a trilene knot works well too for the big stuff.