Im not convinced about the whole lineage concept as to say well this is our lineage and this is the way we fight etc.Good example is where Gracie barra uses the de la riva guard when it came from de la riva who's was a carlson guy.All the techniques are copied,stolen,re invented or improved,swapped.Where did the double leg take down come from Bjj?but its in the syllabus.Not to mention that everybody has a different style.Ie pulling guard or half guard is not a carlson thing to do yet ive seen carlson fighters do it.Its a constantly progressing and moving art.Can someone define the parameters of what lineage is meant to be or mean in bjj?