There have been several questions regarding the auto-trading of this strategy. To make things easier for everyone, I will make a post this weekend which contains:
1. A summary of the strategy;
2. Risks of the strategy;
3. Returns since it was traded (in June);
4. What your expected returns should be, and why or why not you might meet them;
5. Thoughts on why this has worked so well for SPY and not for GLD.
If you have any specific questions, feel free to post them here, in that thread, PM me, or email me.