Well I just paid full price for a Heritage a couple weeks ago and so far I'm happy. I'm 5'10" and 225 with a good bit more experience than you (been riding off and on since 1987) and got the 162. I came to it from a Lib Tech T.Rice and the first thing I noticed was that it is a good bit more flexible than the T.Rice...I also think the rocker section is a bit more pronounced. The Heritage is a great board...if it is the right board for you is a different question.
That's interesting, I was under the impression that the T.Rice and Heritage were very similar stiffness, with the Dark and Raptor being the stiffest from each company... BTW, my all mountain is a T.Rice 157 C2 and I'm 5'5" 175. Curious why you went to a Heritage from a T.Rice?