Generally speaking, a Bump & Jump board has a flatter tail rocker than a Wave board. This allows the Bump & Jump to accelerate onto a plane much earlier than a wave board. Some sailors like the flatter rocker for the additional speed it gives you for hitting ramps, especially in tighter waves like the Gorge. The flatter rocker also tends to make the board a bit stiffer in the turns, so longer high speed turns are a bit more comfortable. We find bigger sailors tend to like the flatter rocker because it gets them onto a plane sooner and glides them through the lulls better.