Now what would the fun be in using something like that? lmao Not getting bloody fingers or making up new curse words. Finding all the pieces after you throw the recoil across the garage AGAIN.
I have an easy way to rewind those springs, if I can explain it well enough to understand. I take a cordless drill and stick the chuck with teeth slightly open on the center of the spring, the outside I have hooked on a nail in a board. I just slowly work the drill till the spring winds up then clamp the tight spring pack with vice grips. Once you grab it with the vice grips you can pull it off the board and set it in place. Works like a charm.
I do same thing with nail on a flat piece of wood and pliers. After getting wound up we put a zip tie around it. From there it can be dropped into place. Less than 5mins and done.