I would like to ask the community members their experience on managing the Greeks. The reason being that each "Expert" seem to articulate very specific guidelines and for the same strategy and portfolio greeks- the guidelines can be polar opposites and yet I find that each seem to make money in the end process most of the time! Case in point if you follow John Locke the Delta Theta Ratio, Theta vega ratio and Delta Vega ratio are vastly different compared to Tony Sizemore's who recommends a 1 to1 ratio for Theta Vega and 10% for delta theta ratios for the same strategy! The end result is that there may be many adjustments - more than I personally like to play with. On the other hand if one follows RTT there are no such guidelines except to have a very flat T +0 line and adjust the positions accordingly. So what is the optimal Greeks Management strategy if there are any that is universal- for RTT, STT, BWC, BBF or combinations All input would be appreciated.