Actually I think zone mode isn't as much of a problem as one may think. I don't think the tracks in WO were necessarily designed with Zone in mind. Zone in WO has your ship is stuck to the track (maglocked) for almost the whole time even when it isn't in the default track configuration. So in other words, if you just follow WO then you should be able to stay on the tracks in ssgx because your ship won't be allowed to leave the track except at certain points (jumps) just like in WO.