I do not like the idea that you attach your slider to your neck collar. Two years ago, I saw a canopy collision during the final approach. One parachutist had to cut away her damaged main. She was less then three seconds under her reserve and she had no time left to unstow her brakes. Every second counts. You do not need something that slow downs or prevents you of cutting away your main. I just collapse my slider, bring it behind my neck and open my chest strap as far as possible. It works very well.
