I know what sizes I need, but I don't really know about other people....For example, I have a friend who is 5'6" probably around 110-125 (that's a guess, no way I'm asking her ). She rides a 146, which I would guess would be good if she rode park and whatnot, but her board is pretty much just a cheap powder board (which is dumb since she can't even turn toeside yet at all but that's beside the point)...So just out of curiosity am I right in thinking that's way too small for that?