I am long 200 shares of URI with a cost of $155.91. I sold two 21 August Covered Calls at $157.50 strike. If it is called away, I will be up $7.34 for each share. Question is: If I want to take some of the call premium I received, and buy a protective put, what would be the best way to go about selecting the most advantageous strike? Also, would I buy the same expiration as my calls, or go out longer. Any help would be appreciated.