What size Tanker (187 or 200) best for resort powder?

[Helvetico]

I sort of visited this topic a while back. In any case, I just had a kid, and I'm reluctant to go off-piste. Still want some powder, though. 182 Tanker is good, but not great...not enough float to cruise the flatter resort powder.

I'm looking at the 187 oversize and the 200. Got small feet (size nine US, or 27 mondo), but with soft boots on they still hang over the 182's narrow (25.5) waist.

Anyone out there ridden both? How do they compare? I don't care much about piste performance...the Reto Lamm LSD handles that. 182 flops like a fish at speed, so I would like more rigidity, though; it would make the piste easier to handle.

Which of these boards (187/200) is stiffer? I'm guessing the 187, since it's wider and shorter. Appreciate all input...thanks.