You already have got the answer from the other thread(s) - if a true twin, you basically need a full full rocker deck (e.g., Dirty Pillow, Skate Banana, etc.) or something very close (e.g., Banana Magic), but none of these can hold a candle to a proper pow deck.
Hahaha, sorry if my posts were misleading ... I am not looking for the perfect twin all mountain snowboard that is on par with a proper pow deck. With my choice, I will definitely get sub-par performance compared to a pow deck which is fine with me.
Looking at the various post on T.Rice 157, at 160 lbs ... u should get decent performance in deep pow. Nearing 210 lbs ... perhaps a T.Rice 161.5 makes more sense. In my case 175 lbs, T.Rice 157 is a bit risky, 161.5 would be less fun in trees ... perhaps I should get a TRS 159?