Sam skulle byta till "leapee" och försöka fixa vad de hade gjort för att mucka upp sin tidslinje. Generellt skulle det vara att påverka ett enda dåligt beslut snarare än att göra några stora livsstilsval på deras vägnar. Det betyder att när de återvände skulle de inte längre kunna göra det "dåliga" valet och helt enkelt fortsätta med sina liv som tidigare.
Per Vanliga frågor om kvantumspring
Q. What does the leapee remember about his experience after he returns?
This is also not known. The only time we've seen this occur was in the episode "Double Identity," where Sam leaped to replace another body and the original host returned. He APPEARED to have no memory of anything after he was leaped into. It has been stated that the leapee, while in Sam's body back in the Waiting Room, has a 'swiss-cheesed' memory, much like Sam received upon his initial leap. Because of the ultramodern hospital-like atmosphere of the waiting room, many of the leapees believe they have been abducted by aliens. Deborah Pratt says that as the leapees return, they pick up some of Sam's memories of what happened, but they believe the events happened to them.