Strainrite sure has some handy, well thought out products. Everything we have bought from them has been good quality and worked well. Pricey, but worth it in my opinion.
Typically reels have handles attached at the open end. This allows you to attach to wires or posts at the other end. Everyone's context is different and there is no shortage of creative ways that people terminate their handle ends. The important thing to remember is conductivity. Is the gate handle attached to your reel/twine conductive or non-conductive? Make sure you don't ground out your voltage by hooking your handle to a wire or post that isn't insulated.
