I just skied this in a 176. I am 6'0", 200lbs, level 8 skier. Mammoth Mtn. some messed up crud...sun baked...some packed powder and mixed older moguls. I did a ton of research on this ski, however after skiing it, I must say...(contrary to a lot of marketing out there in the mags) I hated it. It could not hold any sort of edge for me and was not a ski I would feel confortable with on or off piste. Yes, I know it is Rossi's "crud buster" but I found nothing positive about it.
Having said this, I must say that I have heard a lot of advice from folks I trust in the bus. and folks I have seen ski..who like this stick. It just did'nt work for me.
I did buy the B-4 earlier in the year...and love it...love it, love it..in a size 178...For such a big ski...I can turn it quickly...even in soft bumps...and the pow performance is almost as good as my Dynastar Big Trouble's...just did'nt feel I was being held (funny...) by the B-3 well at all. Not recomending the B-4 for a main ski back east for u...too soft..but perhaps a Volkl AC4 in a 170...(you are lighter than I) or maybe demo a 174 in a Salomon Scrambler Hot...a fast ski edge to edge with great quick turns and still relatively stable...though if you ski it upright..the tip may wander a tiny bit..(this can be easily mitigated with tiny pressure on your toes..)
Like Gary Z. says...about his pow experience..perhaps this B-3 shines there...in that cond.
My advise? Stay away..however there are a ton of ski's out there..that may have what your looking for.