One last note, using weekly options will give you more gamma, and are therefore favorable at key turning points. One thing to do instead that is interesting is to buy the monthly naked on an trade signal, and sell the weekly ratioed when we are hedging if things go bad. This can give you almost a free trade if done right. Recall that the 50 delta option has the most gamma, theta and vega (I am not going to get into the forward vs spot and their corresponding delta). This is can be complicated though because the monthly is more affected by the path of the implied volatility curve, and the weekly by the path of the underlying, the monthly and weekly converging on the opts ex.
There are so many ways to try to gain edge, but this may be one way to reduce risk even further and maximize opportunity by understanding the dynamics of different instruments.