Random comment: Securing the trace eight with a second knot is really not necessary, as it is a self tightening knot. Most climbers don't do it, my climbing safety book doesn't show it and all gyms I've been too, sans one in Vancouver WA for some reason, don't require it. Rough rule is two fists length for the tail and you're good.
Another comment mentioned this too, it's much easier to untie if tied in a specific way and if you do lead climbing they usually show you the technique. You can also do it with a Yosemite finish for a similar improvement.
Another comment mentioned this too, it's much easier to untie if tied in a specific way and if you do lead climbing they usually show you the technique. You can also do it with a Yosemite finish for a similar improvement.