It is best to do ITM Diagonals when $VIX is low.
A consideration to help balance an inventory thatincludes ITM Diagonals may be to enter tradeshaving negative Vega like long call and put verticalspreads.
Evaluate the advantages/disadvantages of anintermediate/long term Diagonal.
Greeks for an ITM Diagonal: Delta, Neutral, Gamma,Negative, Theta, Positive, Vega, Positive