@b-tone, where does the jumping take place?
Not all ccline segments that are generated are really used during racing. However, they are needed to build the ccline around the track. I am talking about the ccline segments/sectors at the beginning of every track until the point where it overlaps with the last ccline segment.
When you take a look at Monza it is easy to see what i mean. The first ccline 122 segments (only the initial sector on this track) are overwritten by the overlapping part (ccline sector 55, 56 and 57). So this means the beginning of the ccline doesn't have to exactly match with the overlap.
The last segment of the last ccline sector has to match the underlaying ccline. Otherwise the cc-cars will make a little jump to the left/right when they are driving at that position.