Best Longboard Review Top 5 List no. 2. Sector 9 Blue Wave Lookout Dropthrough Complete Longboard. Had a little experience cruising around on a board and ready to move to the next level? The review team believes the 41-inch Sector 9 Blue Wave Lookout is the right choice for you; sturdy and comfortable enough for cruising but with the features and flexibility required for beginning and intermediate sliders, built by one of the most-respected longboard manufacturers around.