The Radian Super Light, or RSL, was a special run of SPYY's popular Radian Series in 2008. Reminiscent of the 'Mag' series from Custom Yo-Yo's, as well as the BMT 'Six-Shooter', it featured five 'cutaway' holes on each half, which were precisely and painstakingly chamfered to prevent injury during play. The RSL was made from a harder aluminum than most SPYY releases, which made it difficult to anodize flawlessly, which led to its being left raw.
