I have read much speculation about Gott's theoretical use of Cosmic Strings for time travel, but if the colliding Cosmic Strings accelerated the spacecraft faster than light, as Gott theorizes, could they also be used to send Space Craft to another star faster than light?

For instance, if it allows you to return to the point in time you entered the reaction of the colliding Cosmic Strings, could you return to that time at a different star, so that you arrived there faster than the light from your own star?

At the very least, would it allow you to visit another star after a journey of many lightyears (centuries) and then return to your original star at the point you left?