go read the posts by chelek:
http://kennethfolkdharma.wetpaint.com/thread/4412724/Mahasi+and+Chah+-+differences+in+practice
chelek is a highly experienced practitioner, someone who had
experiential insight into anatta
basically what he said in the webpage is that there are two
kinds of vipassana. one is like the mahasi noting style while the
other is the chah style which i will leave the description for you
to read in his posts. he also suggests that the mahasi follows more
in accord with the visudhimagga commentary while the chah way
follows more of the suttas
basically i resonate with the chah style and it also occurred to
me that what he said is very right as i just mentioned recently in
the other thread on this forum that different paths will have
different progress of insight, the visudhimagga progress of insight
for example does not apply to everyone but only to those following
that style of practice. also related post from another
thread:
http://dharmaoverground.org/web/guest/discussion/-/message_boards/message/402071#_19_message_406173
look at the post by chuck kasmire (chelek)