Needed: Stretchy toe-up bind off

What is the best stretchy bind off for toe-up socks? I’ve tried some that are on KH.com, but I still can’t get it quite stretchy enough. Thanks.

Sewn bind off. Fabulously stretchy. http://www.socknitters.com/toe-up/lessonsix.htm

Thanks! I’m going to try that right away. I’ve had a sock waiting for a while now.