Xue Sheng
All weight is underside
It reminds me of Tai Chi. If you don't come in with an understanding of combat application, you may never get it without the right instructor.
Dave Hopper
And sometimes if you come to taijiquan with a prior martial art and your understanding of combat is from that prior martial arts point of view, even with the right instructor you will never get it.
BUt I do agree you need the right instructor in either case and as far as taijiquan is concered that is a lot harder to find than it sounds