man oh man fazza. that looks so fun!! I kind of think the major difference between the two boards is the length and rail shape. Because of the wing, I feel the jacknife maintains a little less rail curve which, to me, makes the board draw a slightly longer, driver line than the Hellrazor. subtle, though, i agree, and likely more noticeable if did have both at the same time. Most surfers who are in for this genre of board will enjoy either.