Sometimes succor is just not enough. As Pharazon pointed out, knowing the timing of prey really helps. Prey will out between mechanics usually. Once you get the timing down you will be able to adlo quicker. However, I must say during double prey, it is important that you and the WHM split up who casts on whom. The way my group does it is that I get whomever is on bottom and the WHM gets whomever is on top; Unless it's on ourselves, in which case priority is ourselves and the other covers whoever got the prey.

Here is a video if you want to check it out: https://www.youtube.com/watch?v=Q7RF...BrG8StVodCOZjw