I'm looking at purchasing a Quadfish at my local shop. The dimensions are 5'10" x 21" x 2 7/8" 42.1L. Is this board considered the Quadfish Retro because of the extra volume? I see a lot of mention of the Quadfish HP vs. the Retro on the furum, but I don't see that verbage on the Quadfish page except for the foils comparison and buyers chart. I appreciate your feed back. I'm just trying to get the dims right for my size, 5'11" 190lbs. Thanks!