Is it possible to stay within the slip or is it only a short window of time you get?
Its theoretically possible to stay in them, you have to attune yourself to the frequency of that time period, embrace it basically but at the quantum biological level, not just the mental. Most will focus in the moment as if it's an out of place time period which only reinforces their original time period which sends them back to their home frequency time period.
Its like, when you astral project, if you start thinking about your body you will catapult your consciousness back to the body, with extreme velocity in some cases.
Most time slips shift back to the past because the observer was in a hypnagogic state, day dreaming or functioning on auto pilot, as was the time period and place they go back to, like a little lull point. So the two merge as a possibility to witness.
In most cases though, going back to the past isn't going to have any kind of better life style, unless your comfortable stealing a new identity and hiding, and confident you can predict enough outcomes to make a success of it financially. If you get caught you'll probably end up in jail, a psyche ward or worse.
I can't see many benefits of staying anywhere you might slip back to.
