A 162 seems a bit small for your size in that deep. I'm 175-180 with a 164 charlie slasher and so far in only 2 ft of fresh it feels a hair small.
but your board is a asym twin with rocker tips...not a deep poo board.
That might be the case. I think the rocker tips were making me lean to much, and I probably should've weighted my front a bit more. Also like you said it's not a deep pow board, I was more mad that my friend who I normally do much better in deep pow then wasn't falling at all, but he's had the same Burton Seven for years and it's not rockered at all. Probably should've just rode my Goliath since it's a wide directional twin.