I was looking into getting the K2 WWW 147. My question is do you guys think its too small for me? I'm 5'9" 155lbs size 9 boots. I usually ride a 152-154 cm board for park. I've read that the board has a longer effective edge allowing you to drop down in board size about 5 cm. I was looking at the K2 WWW 151 also but I think the waist (25.3cm) might be a little too wide as oppose to the 147 (24.8cm). What do you guys think? any input would be greatly appreciated, thanks!