after the pinans (heinans) in wado ryu we learn kushanku, nihanchi, seisan, chinto, bassai, niseishi, wanshu, rohai, jion, jitte. what do some of you guys think is better, knowing how to perform a lot of katas or truly understanding a few, because i have noticed a lot of styles have a lot of katas, how can u truly understand them all it would take about 10 or 20 lifetimes unlesss ur superman, or after learning the katas do u have a choice on really studying a few in depth and developing practical bunkai from the principles within them