I looked at the TA results in the cdfreaks thread. http://club.cdfreaks.com/showthread.php?t=111839&page=2&pp=100
It does indeed look like it is measuing T3-T11+T14 pit/land transition and displaying it as a histogram.
However, also this is a drive dependent feature (somewhat) and not a true low level disc measure.
However, it is more low level disc characteristics than DC jitter, something which is very much influenced by the tracking/focus/slicer implementation.
A welcome feature to disc testing, imho.