Once you get don't sacrifice it willingly. Too often athletes get and then throw it away too quickly going for a risky or low percentage move. There is nothing wrong with taking a calculated risk, but make sure there is a reward that makes it worth it. Remember that top position requires to have an effect. If you quickly jump off to another move you simply won't let top pressure work in your favor. If you do get bucked off if should be because your opponent FORCED you out of top position, not because you jumped off looking for a prize not worth fighting for. Make a habit of not surrendering top position without a fight – soon you will that the pressure you can generate over time will make your investment worth it as on a weakened opponent are much easier to apply than on a fresh opponent