A hard swap is also referred to as a full swap.
More About Hard Swap
Before entering the swing lifestyle, it's important for you and your partner to communicate your desires. If either are you are uncomfortable with the idea of the other engaging in penetrative sex with another person, then being hard swap swingers is not a good idea - at least at first. In fact, most new swingers are encouraged to start only with soft swap, which does not involve penetrative sex. Once you and your partner become a little more experienced, you may feel comfortable with the idea of a hard swap and choose to make that transition.