We've been very happy with the spinnlock asymetric. Our boat came with a basic dinghy style extension that ended in simple grip with a
ball on the end. In heavy air, it wasn't much fun since there was no way to get both hands on the extension, and it wasn't easy to switch
hands. I don't always want two hands, but when it blows, or we're on a pole on the headstay spinn reach, the ability to comfortably get both
hands on the extension is a huge win.
- David