@Turbo Lover: Well, you're somewhat taking the problem the reverse side because in fact, all past Gp4Builder version were displaying verges wrong because they were offset by 1 sector. I fixed it in latest revision but of course, if you made a track with heavy verge changes before, you will need to make some fixes.
Note that what you see in GP4Builder 1.1.0.8 is what you will "feel" ingame, and even if past revisions were displaying something fine, cars were in fact reacting to track as 1.1.0.8 is displaying it.
Sorry for the convenience.