S2 E5 - Taichi and Beginner Mind

One of the main practices of Taijiquan is the the Taichi Form. It is often the Taichi Form that encapsulates the outer signs of that lineage or that school. All the main 5 classic styles (Chen, Yang, Wu-Hao, Wu and Sun) have similarities and differences, and in every lienage you have one different Taichi for every teacher (yi ren yi taiji - one Taichi for each Teacher). So how important is the sequence in Taichi and how much is important to find a new teacher that teaches the sequence you have been previously taught?