Did ya'll know a version of those were out in the.........LATE 80's or early 90's? Remember the company Pro Line? They introduced those, well, it wasn't called that of course but it was the same basic thing, and for some reason there wasn't a good reception. Then STS came out, what......3 years ago maybe, and all of a sudden similar are coming stock on bows......

They are indeed an EXCELLENT product.