What do you think a "Sandwich Strike" is like?

What do you think a "Hook Strike" or a "Sandwich Strike" is like? These are sophisticated techniques which often catch opponents by surprise. On the other hand, a "Grasp Strike" is a very effective technique against fast attackers, like Boxers. Eagle Claws are of course present in all these techniques, even in a seemingly unconnected technique called "Horse-Riding Punch". Nevertheless, there is a special sequence, called "Eagle Claw Grip Techniques", where the Eagle Claws are particularly obvious.